I have a 12GB HDTV clip that I split using Split&Concat into 128MB chunks (to make the best use of the space on 3 DVD-Rs, since Split&Concat didn't handle splitting into chunks >2GB). Unix 'cat' is limited to 2GB. HJSplit seems to be limited to 4GB. Anyone know of any split/join programs that support huge files? Edit: Just to clarify, I've already split this giant clip, now I want to put it back together by joining the parts.