Quake Wars in Motion › Render TGA Files to a Video File

One word: Virtual Dub.
One codec: Huffyuv

That is really all you need to get a big lossless Video File from the captured screenshots.

Step by step:

Open Virtual Dub, load the files:
-> File -> Open Video File -> Select the first TGA file from your captured screenshots.

Set the Frame Rate:
-> Video -> Frame Rate -> Change to -> 30.

Compress the Video File:
-> Video -> Compression -> huffyuv .

Save the Video File:
-> File -> Save Avi.

Now let Virtual Dub do its job. You should now be able to use this file in your favorite Video Editing Software. You should also make sure that your file system is NTFS or ext3 for Linux, because FAT file systems can only handle files up to 2 gigabyte.