Need a .bat file to join avi files

[aat666]

Hi there,

I have over 100 folders with avi files in, each folder has a few avi's in. I've been using Virtualdub to join the files with no problem, but it is taking ages.

I'm looking for a ".bat" file that I can put into the folders and just click & let it join them for me rather than having to drag the files into a program, then selecting another file, then another, then selecting save.

Found on sites suggesting bat files with commands like these :

copy /b *.* movie.avi

copy /b *.avi movie.avi

The problem is, it looks like it has joined them due to the new file being the size of both files joined together, but when opening the file, it's only the first file, so not joined but twice the size ??

If anyone can help, I'd be very grateful

[Baldrick]

copy /b doesn't update the avi header so it wont work.

I have not seen any good avi batch joiner.

[jagabo]

I wonder if you could remux to some intermediate file format that would allow simple appending (copy/b), or has a CLI tool for appending, then convert back to AVI. Of course, for this to work with AVI the properties (frame size, frame rate, codecs, etc.) of all the files have to be the same.