|From what I understood, you successfully separated the 15Gb file into 4 parts and were able to burn in onto a disc. The part that you lost me at was you don't seem to understand why you're getting and error when trying to extract Part 4 by itself. If this is correct, then it's normal. You can't just take a quarter of the video file and expect it to extract 100% of the video file. All parts have to be together like you mentioned in the next line.|
If this isn't what you having issues with, please elaborate.
AMD Phenom II X2 550 @ 3.11
Patriot PC2-6400 4Gig
Seagate 160Gig SATA
Seagate 320Gig SATA