Can’t Merge AVI Files with VirtualDub Correctly - Solution

"I have some videos on an old MiniDV camcorder that I offloaded into AVI files. It broke the 40 minute video into 4 files. three of them are 12:30 and the last one is 3:32. If I open up any of the individual files, they all show the correct length. But when I added the files to VirtualDub and combine these AVI files, it gives the wrong length video. I've never had this problem before. Can anyone recommend what might be causing this? Or any easier solution for me?"

Encountered issues when combing AVI files in VirtualDub? In this article, we aim to help you fast solve the issue.

By default VirtualDub automatically appends all sequentially numbered files when you append. So if you have file1.avi, file2.avi, file3.avi, and file4.avi, and you open file1.avi, then append file2.avi, file3.avi and file4.avi will automatically be appended too. Notice at the bottom of the append dialog there's the option "Autodetect additional segments by filename". Have a try. It may help you out.

As you see, it’s a bit hard to merge AVI files with VirtualDub, why not find an easier method to achieve the goal? Brorsoft Video Converter | Video Converter for Mac is strongly recommended here as the best software to combine 2, 3, 4 and more AVI video files.

Overall, this fabulous program can assist you in joining AVI as well as H.265, VOB, MKV, WMV, FLV, MPG, MTS, etc videos seamlessly in a very short time and retain the original quality. To further touch up your video, you can add special effects, texts, subtitles as well as trim, crop videos. Aside from merging multiple files, it will also allow you to convert videos and audio in all the popular formats, which include MP4, AVI, WMV, FLV, MOV, MKV, MPG, M2TS, WMA, AAC, MP3, FLAC, OGG and more.

If you are ready, you can follow the information below to join your AVI videos files easily on Windows or Mac using this amazing tool. Before getting started, you should download and then install the file joiner.

READ MORE: Edit MKV in VirtualDub | Edit MTS in VirtualDub | Edit MXF in VirtualDub

How to| Join AVI files into one without any hassles

Step 1. Import AVI files

Launch the program and click the add button to import the .avi files.

Step 2. Merge multiple AVI movies

Check "Merge into one file" at the bottom under the preview window and then click the "Convert" button. You'll get a continuous movie.

Step 3. Advanced Settings

Select the output file location, format and set the necessary parameters (frame rate, codec, video size, etc). You can also click Edit button to trim, crop, add special effect or attach subtitles to your videos.

Tip: For example, if the end result you need is an MP4 file that is a combination of your original files, you can choose MP4 from Common Video as output format.

Step 4. Start joining AVI clips

Click the big Convert button to start merging AVI video files into one file immediately. As soon as the conversion is done, simply click "Completed" to back to main interface, and click "Open" button to find generated videos.