Add and use 2 extension methods for splitting path into dir+filename

src/BizHawk.Client.Common/movie/MovieConversionExtensions.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Linq;
 
 using BizHawk.Common;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores.Consoles.Nintendo.Gameboy;
 using BizHawk.Emulation.Cores.Consoles.Nintendo.NDS;
@@ -289,13 +290,13 @@ namespace BizHawk.Client.Common
 
 		internal static string ConvertFileNameToTasMovie(string oldFileName)
 		{
-			string newFileName = Path.ChangeExtension(oldFileName, $".{TasMovie.Extension}");
+			var (dir, fileNoExt, _) = oldFileName.SplitPathToDirFileAndExt();
+			var newFileName = Path.Combine(dir, $"{fileNoExt}.{TasMovie.Extension}");
 			int fileSuffix = 0;
 			while (File.Exists(newFileName))
 			{
 				// Using this should hopefully be system agnostic
-				var temp_path = Path.Combine(Path.GetDirectoryName(oldFileName), Path.GetFileNameWithoutExtension(oldFileName));
+				newFileName = Path.Combine(dir, $"{fileNoExt} {++fileSuffix}.{TasMovie.Extension}");
-				newFileName = $"{temp_path} {++fileSuffix}.{TasMovie.Extension}";
 			}
 
 			return newFileName;

src/BizHawk.Client.DiscoHawk/MainDiscoForm.cs

@@ -3,6 +3,8 @@ using System.Collections.Generic;
 using System.Drawing;
 using System.Windows.Forms;
 using System.IO;
+
+using BizHawk.Common.PathExtensions;
 using BizHawk.Common.StringExtensions;
 using BizHawk.Emulation.DiscSystem;
 
@@ -120,8 +122,7 @@ namespace BizHawk.Client.DiscoHawk
 			foreach (var file in files)
 			{
 				using var disc = Disc.LoadAutomagic(file);
-				var path = Path.GetDirectoryName(file);
+				var (path, filename, _) = file.SplitPathToDirFileAndExt();
-				var filename = Path.GetFileNameWithoutExtension(file);
 				static bool? PromptForOverwrite(string mp3Path)
 					=> MessageBox.Show(
 						$"Do you want to overwrite existing files? Choosing \"No\" will simply skip those. You could also \"Cancel\" the extraction entirely.\n\ncaused by file: {mp3Path}",

src/BizHawk.Client.EmuHawk/AVOut/AviWriter.cs

@@ -9,6 +9,7 @@ using System.Threading;
 
 using BizHawk.Client.Common;
 using BizHawk.Common;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 
 // some helpful p/invoke from http://www.codeproject.com/KB/audio-video/Motion_Detection.aspx?msg=1142967
@@ -54,9 +55,7 @@ namespace BizHawk.Client.EmuHawk
 
 		public static IEnumerator<string> CreateBasicNameProvider(string template)
 		{
-			string dir = Path.GetDirectoryName(template);
+			var (dir, baseName, ext) = template.SplitPathToDirFileAndExt();
-			string baseName = Path.GetFileNameWithoutExtension(template);
-			string ext = Path.GetExtension(template);
 			yield return template;
 			int counter = 1;
 			for (;;)

src/BizHawk.Client.EmuHawk/AVOut/FFmpegWriter.cs

@@ -72,12 +72,9 @@ namespace BizHawk.Client.EmuHawk
 
 		public void OpenFile(string baseName)
 		{
-			_baseName = Path.Combine(
+			var (dir, fileNoExt, ext) = baseName.SplitPathToDirFileAndExt();
-				Path.GetDirectoryName(baseName),
+			_baseName = Path.Combine(dir!, fileNoExt);
-				Path.GetFileNameWithoutExtension(baseName));
+			_ext = ext;
-
-			_ext = Path.GetExtension(baseName);
-
 			_segment = 0;
 			OpenFileSegment();
 		}

src/BizHawk.Client.EmuHawk/AVOut/ImageSequenceWriter.cs

@@ -4,6 +4,7 @@ using System.Drawing.Imaging;
 
 using BizHawk.Bizware.BizwareGL;
 using BizHawk.Client.Common;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 
 namespace BizHawk.Client.EmuHawk
@@ -45,8 +46,8 @@ namespace BizHawk.Client.EmuHawk
 
 		public void AddFrame(IVideoProvider source)
 		{
-			string ext = Path.GetExtension(_baseName);
+			var (dir, fileNoExt, ext) = _baseName.SplitPathToDirFileAndExt();
-			var name = Path.Combine(Path.GetDirectoryName(_baseName), $"{Path.GetFileNameWithoutExtension(_baseName)}_{_frame}{ext}");
+			var name = Path.Combine(dir!, $"{fileNoExt}_{_frame}{ext}");
 			BitmapBuffer bb = new BitmapBuffer(source.BufferWidth, source.BufferHeight, source.GetVideoBuffer());
 			using var bmp = bb.ToSysdrawingBitmap();
 			if (ext.ToUpper() == ".PNG")

src/BizHawk.Client.EmuHawk/AVOut/NutWriter.cs

@@ -2,6 +2,7 @@
 using System.IO;
 
 using BizHawk.Client.Common;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 
 namespace BizHawk.Client.EmuHawk
@@ -44,9 +45,8 @@ namespace BizHawk.Client.EmuHawk
 
 		public void OpenFile(string baseName)
 		{
-			_baseName = Path.Combine(
+			var (dir, fileNoExt, _) = baseName.SplitPathToDirFileAndExt();
-				Path.GetDirectoryName(baseName) ?? "",
+			_baseName = Path.Combine(dir ?? string.Empty, fileNoExt);
-				Path.GetFileNameWithoutExtension(baseName) ?? "");
 			_segment = 0;
 
 			StartSegment();

src/BizHawk.Client.EmuHawk/AVOut/SynclessRecorder.cs

@@ -7,6 +7,7 @@ using System.Text;
 using BizHawk.Emulation.Common;
 using BizHawk.Bizware.BizwareGL;
 using BizHawk.Client.Common;
+using BizHawk.Common.PathExtensions;
 
 namespace BizHawk.Client.EmuHawk
 {
@@ -37,9 +38,9 @@ namespace BizHawk.Client.EmuHawk
 		public void OpenFile(string projFile)
 		{
 			_mProjectFile = projFile;
-			_mBaseDirectory = Path.GetDirectoryName(_mProjectFile) ?? "";
+			var (dir, fileNoExt, _) = projFile.SplitPathToDirFileAndExt();
-			string basename = Path.GetFileNameWithoutExtension(projFile);
+			_mBaseDirectory = dir ?? string.Empty;
-			string framesDirFragment = $"{basename}_frames";
+			var framesDirFragment = $"{fileNoExt}_frames";
 			_mFramesDirectory = Path.Combine(_mBaseDirectory, framesDirFragment);
 			var sb = new StringBuilder();
 			sb.AppendLine("version=1");

src/BizHawk.Client.EmuHawk/AVOut/WavWriter.cs

@@ -5,6 +5,7 @@ using System.IO;
 
 using BizHawk.Client.Common;
 using BizHawk.Common.IOExtensions;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 
 namespace BizHawk.Client.EmuHawk
@@ -261,14 +262,12 @@ namespace BizHawk.Client.EmuHawk
 		/// </summary>
 		private static IEnumerator<Stream> CreateStreamIterator(string template)
 		{
-			string dir = Path.GetDirectoryName(template) ?? "";
+			var (dir, baseName, ext) = template.SplitPathToDirFileAndExt();
-			string baseName = Path.GetFileNameWithoutExtension(template) ?? "";
-			string ext = Path.GetExtension(template);
 			yield return new FileStream(template, FileMode.Create);
 			int counter = 1;
 			while (true)
 			{
-				yield return new FileStream($"{Path.Combine(dir, baseName)}_{counter}{ext}", FileMode.Create);
+				yield return new FileStream($"{Path.Combine(dir ?? string.Empty, baseName)}_{counter}{ext}", FileMode.Create);
 				counter++;
 			}
 		}

src/BizHawk.Client.EmuHawk/MainForm.Events.cs

@@ -12,6 +12,7 @@ using BizHawk.Client.Common;
 using BizHawk.Client.EmuHawk.CustomControls;
 using BizHawk.Client.EmuHawk.ToolExtensions;
 using BizHawk.Common;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 using BizHawk.Emulation.Cores;
 using BizHawk.Emulation.Cores.Arcades.MAME;
@@ -606,12 +607,11 @@ namespace BizHawk.Client.EmuHawk
 
 		private void ScreenshotAsMenuItem_Click(object sender, EventArgs e)
 		{
-			var path = $"{ScreenshotPrefix()}.{DateTime.Now:yyyy-MM-dd HH.mm.ss}.png";
+			var (dir, file) = $"{ScreenshotPrefix()}.{DateTime.Now:yyyy-MM-dd HH.mm.ss}.png".SplitPathToDirAndFile();
-
 			using var sfd = new SaveFileDialog
 			{
-				InitialDirectory = Path.GetDirectoryName(path),
+				InitialDirectory = dir,
-				FileName = Path.GetFileName(path),
+				FileName = file,
 				Filter = FilesystemFilter.PNGs.ToString()
 			};
 
@@ -1146,11 +1146,11 @@ namespace BizHawk.Client.EmuHawk
 
 		private void SaveConfigAsMenuItem_Click(object sender, EventArgs e)
 		{
-			var path = _getConfigPath();
+			var (dir, file) = _getConfigPath().SplitPathToDirAndFile();
 			using var sfd = new SaveFileDialog
 			{
-				InitialDirectory = Path.GetDirectoryName(path),
+				InitialDirectory = dir,
-				FileName = Path.GetFileName(path),
+				FileName = file,
 				Filter = ConfigFileFSFilterString
 			};
 
@@ -1168,11 +1168,11 @@ namespace BizHawk.Client.EmuHawk
 
 		private void LoadConfigFromMenuItem_Click(object sender, EventArgs e)
 		{
-			var path = _getConfigPath();
+			var (dir, file) = _getConfigPath().SplitPathToDirAndFile();
 			using var ofd = new OpenFileDialog
 			{
-				InitialDirectory = Path.GetDirectoryName(path),
+				InitialDirectory = dir,
-				FileName = Path.GetFileName(path),
+				FileName = file,
 				Filter = ConfigFileFSFilterString
 			};
 

src/BizHawk.Client.EmuHawk/MainForm.FileLoader.cs

@@ -7,6 +7,7 @@ using System.Collections.Generic;
 using BizHawk.Common;
 using BizHawk.Emulation.Common;
 using BizHawk.Client.Common;
+using BizHawk.Common.PathExtensions;
 
 namespace BizHawk.Client.EmuHawk
 {
@@ -31,10 +32,10 @@ namespace BizHawk.Client.EmuHawk
 			public string FileName { get; }
 			public string ArchiveName { get; }
 
-			public FileInformation(string directory, string file, string archive)
+			public FileInformation((string Dir, string File) FilePathSplit, string archive)
 			{
-				DirectoryName = directory;
+				DirectoryName = FilePathSplit.Dir;
-				FileName = file;
+				FileName = FilePathSplit.File;
 				ArchiveName = archive;
 			}
 		}
@@ -132,7 +133,7 @@ namespace BizHawk.Client.EmuHawk
 			foreach (string file in fileList)
 			{
 				var ext = Path.GetExtension(file)?.ToUpperInvariant() ?? "";
-				FileInformation fileInformation = new FileInformation(Path.GetDirectoryName(file), Path.GetFileName(file), archive);
+				FileInformation fileInformation = new(file.SplitPathToDirAndFile(), archive);
 
 				switch (ext)
 				{

src/BizHawk.Client.EmuHawk/MainForm.cs

@@ -1601,8 +1601,7 @@ namespace BizHawk.Client.EmuHawk
 
 			if (Config.LibretroCore != null)
 			{
-				ofd.FileName = Path.GetFileName(Config.LibretroCore);
+				(ofd.InitialDirectory, ofd.FileName) = Config.LibretroCore.SplitPathToDirAndFile();
-				ofd.InitialDirectory = Path.GetDirectoryName(Config.LibretroCore);
 			}
 			else
 			{

src/BizHawk.Client.EmuHawk/config/FirmwaresConfig.cs

@@ -11,6 +11,7 @@ using BizHawk.Common;
 using BizHawk.Client.Common;
 using BizHawk.Common.CollectionExtensions;
 using BizHawk.Common.IOExtensions;
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.Common;
 
 // notes: eventually, we intend to have a "firmware acquisition interface" exposed to the emulator cores.
@@ -611,11 +612,8 @@ namespace BizHawk.Client.EmuHawk
 					}
 
 					// hmm they're different. import but rename it
-					string dir = Path.GetDirectoryName(target);
+					var (dir, name, ext) = target.SplitPathToDirFileAndExt();
-					string ext = Path.GetExtension(target);
+					target = Path.Combine(dir!, $"{name} (variant)") + ext;
-					string name = Path.GetFileNameWithoutExtension(target);
-					name += " (variant)";
-					target = Path.Combine(dir, name) + ext;
 				}
 
 				Directory.CreateDirectory(Path.GetDirectoryName(target));

src/BizHawk.Client.EmuHawk/tools/Lua/LuaConsole.cs

@@ -278,10 +278,11 @@ namespace BizHawk.Client.EmuHawk
 
 		private void CreateFileWatcher(string path)
 		{
+			var (dir, file) = path.SplitPathToDirAndFile();
 			var watcher = new FileSystemWatcher
 			{
-				Path = Path.GetDirectoryName(path),
+				Path = dir,
-				Filter = Path.GetFileName(path),
+				Filter = file,
 				NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName,
 				EnableRaisingEvents = true
 			};
@@ -652,8 +653,7 @@ namespace BizHawk.Client.EmuHawk
 			var sfd = new SaveFileDialog();
 			if (!string.IsNullOrWhiteSpace(LuaImp.ScriptList.Filename))
 			{
-				sfd.FileName = Path.GetFileNameWithoutExtension(LuaImp.ScriptList.Filename);
+				(sfd.InitialDirectory, sfd.FileName, _) = LuaImp.ScriptList.Filename.SplitPathToDirFileAndExt();
-				sfd.InitialDirectory = Path.GetDirectoryName(LuaImp.ScriptList.Filename);
 			}
 			else if (!Game.IsNullInstance())
 			{
@@ -835,15 +835,22 @@ namespace BizHawk.Client.EmuHawk
 
 		private void NewScriptMenuItem_Click(object sender, EventArgs e)
 		{
+			string initDir;
+			string ext;
+			if (!string.IsNullOrWhiteSpace(LuaImp.ScriptList.Filename))
+			{
+				(initDir, ext, _) = LuaImp.ScriptList.Filename.SplitPathToDirFileAndExt();
+			}
+			else
+			{
+				initDir = Config!.PathEntries.LuaAbsolutePath();
+				ext = Path.GetFileNameWithoutExtension(Game.Name);
+			}
 			var sfd = new SaveFileDialog
 			{
-				InitialDirectory = !string.IsNullOrWhiteSpace(LuaImp.ScriptList.Filename)
+				InitialDirectory = initDir,
-					? Path.GetDirectoryName(LuaImp.ScriptList.Filename)
-					: Config.PathEntries.LuaAbsolutePath(),
 				DefaultExt = ".lua",
-				FileName = !string.IsNullOrWhiteSpace(LuaImp.ScriptList.Filename)
+				FileName = ext,
-					? Path.GetFileNameWithoutExtension(LuaImp.ScriptList.Filename)
-					: Path.GetFileNameWithoutExtension(Game.Name),
 				OverwritePrompt = true,
 				Filter = new FilesystemFilterSet(FilesystemFilter.LuaScripts).ToString()
 			};
@@ -990,11 +997,12 @@ namespace BizHawk.Client.EmuHawk
 					return;
 				}
 
+				var (dir, fileNoExt, _) = script.Path.SplitPathToDirFileAndExt();
 				var sfd = new SaveFileDialog
 				{
-					InitialDirectory = Path.GetDirectoryName(script.Path),
+					InitialDirectory = dir,
 					DefaultExt = ".lua",
-					FileName = $"{Path.GetFileNameWithoutExtension(script.Path)} (1)",
+					FileName = $"{fileNoExt} (1)",
 					OverwritePrompt = true,
 					Filter = new FilesystemFilterSet(FilesystemFilter.LuaScripts).ToString()
 				};

src/BizHawk.Common/Extensions/PathExtensions.cs

@@ -150,6 +150,17 @@ namespace BizHawk.Common.PathExtensions
 		public static bool PathIsSet(this string path) => !string.IsNullOrWhiteSpace(path) && path != "." && path != "./" && path != ".\\";
 
 		public static string RemoveInvalidFileSystemChars(this string name) => string.Concat(name.Split(Path.GetInvalidFileNameChars()));
+
+		public static (string? Dir, string File) SplitPathToDirAndFile(this string path)
+			=> (Path.GetDirectoryName(path), Path.GetFileName(path));
+
+		public static (string? Dir, string FileNoExt, string? FileExt) SplitPathToDirFileAndExt(this string path)
+			=> (
+				Path.GetDirectoryName(path),
+				Path.GetFileNameWithoutExtension(path),
+				Path.GetExtension(path) is { Length: not 0 } ext
+					? ext
+					: null);
 	}
 
 	public static class PathUtils

src/BizHawk.Common/TempFileManager.cs

@@ -4,6 +4,8 @@ using System.Collections.Generic;
 using System.IO;
 using System.Threading;
 
+using BizHawk.Common.PathExtensions;
+
 namespace BizHawk.Common
 {
 	/// <summary>
@@ -30,8 +32,8 @@ namespace BizHawk.Common
 		/// <exception cref="InvalidOperationException">filename in <paramref name="path"/> is not one generated by <see cref="GetTempFilename"/></exception>
 		public static string RenameTempFilenameForDelete(string path)
 		{
-			string filename = Path.GetFileName(path);
+			var (dir, filename) = path.SplitPathToDirAndFile();
-			var dir = Path.GetDirectoryName(path) ?? throw new InvalidOperationException();
+			_ = dir ?? throw new InvalidOperationException();
 			if (!filename.StartsWith("biz-"))
 			{
 				throw new InvalidOperationException();

src/BizHawk.Emulation.DiscSystem/DiscDecoding.cs

@@ -2,6 +2,7 @@
 using System.IO;
 
 using BizHawk.Common;
+using BizHawk.Common.PathExtensions;
 
 namespace BizHawk.Emulation.DiscSystem
 {
@@ -28,9 +29,9 @@ namespace BizHawk.Emulation.DiscSystem
 		/// </summary>
 		private string FindAudio(string audioPath)
 		{
-			string basePath = Path.GetFileNameWithoutExtension(audioPath);
+			var (dir, basePath, _) = audioPath.SplitPathToDirFileAndExt();
 			//look for potential candidates
-			var di = new DirectoryInfo(Path.GetDirectoryName(audioPath));
+			DirectoryInfo di = new(dir!);
 			var fis = di.GetFiles();
 			//first, look for the file type we actually asked for
 			foreach (var fi in fis)

src/BizHawk.Emulation.DiscSystem/DiscFormats/CUE/CueFileResolver.cs

@@ -1,6 +1,8 @@
 using System.IO;
 using System.Collections.Generic;
 
+using BizHawk.Common.PathExtensions;
+
 namespace BizHawk.Emulation.DiscSystem.CUE
 {
 	/// <summary>
@@ -70,9 +72,7 @@ namespace BizHawk.Emulation.DiscSystem.CUE
 		/// </summary>
 		public List<string> Resolve(string path)
 		{
-			string targetFile = Path.GetFileName(path);
+			var (targetFile, targetFragment, _) = path.SplitPathToDirFileAndExt();
-			string targetFragment = Path.GetFileNameWithoutExtension(path);
-
 			DirectoryInfo di = null;
 			MyFileInfo[] fileInfos;
 			if (!string.IsNullOrEmpty(Path.GetDirectoryName(path)))

src/BizHawk.Emulation.DiscSystem/DiscFormats/MDS_Format.cs

@@ -4,6 +4,8 @@ using System.IO;
 using System.Collections.Generic;
 using System.Linq;
 
+using BizHawk.Common.PathExtensions;
+
 using ISOParser;
 
 namespace BizHawk.Emulation.DiscSystem
@@ -471,12 +473,12 @@ namespace BizHawk.Emulation.DiscSystem
 							// assume an MDF file with the same name as the MDS
 						}
 
-						string dir = Path.GetDirectoryName(aFile.MDSPath);
+						var (dir, fileNoExt, _) = aFile.MDSPath.SplitPathToDirFileAndExt();
 
 						if (f.FilenameOffset == 0 ||
 							string.Compare(fileName, "*.mdf", StringComparison.InvariantCultureIgnoreCase) == 0)
 						{
-							fileName = $@"{dir}\{Path.GetFileNameWithoutExtension(aFile.MDSPath)}.mdf";
+							fileName = $@"{dir}\{fileNoExt}.mdf";
 						}
 						else
 						{

src/BizHawk.Emulation.DiscSystem/DiscMountJob.cs

@@ -1,5 +1,7 @@
 using System;
 using System.IO;
+
+using BizHawk.Common.PathExtensions;
 using BizHawk.Emulation.DiscSystem.CUE;
 
 namespace BizHawk.Emulation.DiscSystem
@@ -180,13 +182,14 @@ namespace BizHawk.Emulation.DiscSystem
 //				OUT_Disc.DiscMountPolicy = IN_DiscMountPolicy; // NOT SURE WE NEED THIS (only makes sense for cue probably)
 			}
 
-			switch (Path.GetExtension(IN_FromPath).ToLowerInvariant())
+			var (dir, file, ext) = IN_FromPath.SplitPathToDirFileAndExt();
+			switch (ext.ToLowerInvariant())
 			{
 				case ".ccd":
 					OUT_Disc = new CCD_Format().LoadCCDToDisc(IN_FromPath, IN_DiscMountPolicy);
 					break;
 				case ".cue":
-					LoadCue(Path.GetDirectoryName(IN_FromPath), File.ReadAllText(IN_FromPath));
+					LoadCue(dir, File.ReadAllText(IN_FromPath));
 					break;
 				case ".iso":
 					// make a fake .cue file to represent this .iso and mount that
@@ -194,9 +197,9 @@ namespace BizHawk.Emulation.DiscSystem
 					//TODO try it both ways and check the disc type to use whichever one succeeds in identifying a disc type
 					var len = new FileInfo(IN_FromPath).Length;
 					LoadCue(
-						Path.GetDirectoryName(IN_FromPath),
+						dir,
 						$@"
-					FILE ""{Path.GetFileName(IN_FromPath)}"" BINARY
+					FILE ""{file}"" BINARY
 						TRACK 01 {(len % 2048 is not 0 && len % 2352 is 0 ? "MODE2/2352" : "MODE1/2048")}
 							INDEX 01 00:00:00");
 					break;

src/BizHawk.Emulation.DiscSystem/DiscoHawkLogic/DiscoHawkLogic.cs

@@ -5,6 +5,7 @@ using System.Threading;
 using System.Threading.Tasks;
 
 using BizHawk.Client.DiscoHawk;
+using BizHawk.Common.PathExtensions;
 
 namespace BizHawk.Emulation.DiscSystem
 {
@@ -255,8 +256,8 @@ namespace BizHawk.Emulation.DiscSystem
 				errorCallback(job.OUT_Log);
 				return false;
 			}
-			var baseName = Path.GetFileNameWithoutExtension(inputPath);
+			var (dir, baseName, _) = inputPath.SplitPathToDirFileAndExt();
-			var outfile = Path.Combine(Path.GetDirectoryName(inputPath), $"{baseName}_hawked.ccd");
+			var outfile = Path.Combine(dir!, $"{baseName}_hawked.ccd");
 			CCD_Format.Dump(disc, outfile);
 			return true;
 		}
@@ -311,8 +312,7 @@ namespace BizHawk.Emulation.DiscSystem
 			{
 				if (infile is null) return;
 				using var disc = Disc.LoadAutomagic(infile);
-				var path = Path.GetDirectoryName(infile);
+				var (path, filename, _) = infile.SplitPathToDirFileAndExt();
-				var filename = Path.GetFileNameWithoutExtension(infile);
 				bool? CheckOverwrite(string mp3Path)
 				{
 					if (overwrite) return true; // overwrite