diff --git a/src/CommandLineParser.ts b/src/CommandLineParser.ts
index 5c15b5f..d682c8d 100644
--- a/src/CommandLineParser.ts
+++ b/src/CommandLineParser.ts
@@ -72,7 +72,7 @@ export const argv: any = yargs.options({
     },
     closedCaptions: {
         alias: 'cc',
-        describe: 'Check if closed captions are aviable and let the user choose which one to download (will not ask if only one aviable)',
+        describe: 'Check if closed captions are available and let the user choose which one to download (will not ask if only one available)',
         type: 'boolean',
         default: false,
         demandOption: false
@@ -183,8 +183,8 @@ function isOutputTemplateValid(argv: any): boolean {
         while (match) {
             if (!templateElements.includes(match[1])) {
                 logger.error(
-                    `'${match[0]}' is not aviable as a template element \n` +
-                    `Aviable templates elements: '${templateElements.join("', '")}' \n`,
+                    `'${match[0]}' is not available as a template element \n` +
+                    `Available templates elements: '${templateElements.join("', '")}' \n`,
                     { fatal: true }
                 );
 
diff --git a/src/VideoUtils.ts b/src/VideoUtils.ts
index a9592f5..526f359 100644
--- a/src/VideoUtils.ts
+++ b/src/VideoUtils.ts
@@ -24,14 +24,14 @@ function publishedTimeToString(date: string): string {
     const minutes: string = dateJs.getMinutes().toString();
     const seconds: string = dateJs.getSeconds().toString();
 
-    return `${hours}:${minutes}:${seconds}`;
+    return `${hours}.${minutes}.${seconds}`;
 }
 
 
 function isoDurationToString(time: string): string {
     const duration: Duration = parseDuration(time);
 
-    return `${duration.hours ?? '00'}:${duration.minutes ?? '00'}:${duration.seconds?.toFixed(0) ?? '00'}`;
+    return `${duration.hours ?? '00'}.${duration.minutes ?? '00'}.${duration.seconds?.toFixed(0) ?? '00'}`;
 }
 
 
@@ -152,8 +152,12 @@ export function createUniquePath(videos: Array<Video>, outDirs: Array<string>, t
             finalTitle = `${title}.${++i}`;
         }
 
+        const finalFileName = `${finalTitle}.${format}`;
+        const cleanFileName = sanitizeWindowsName(finalFileName, { replacement: "_" });
+        if (finalFileName !== cleanFileName) logger.warn(`Not a valid Windows file name: "${finalFileName}".\nReplacing invalid characters with underscores to preserve cross-platform consistency.`);
+
+        video.outPath = path.join(outDirs[index], finalFileName);
 
-        video.outPath = path.join(outDirs[index], finalTitle + '.' + format);
     });
 
     return videos;