jfarrx19, on Mar 31 2006, 04:33 PM, said:
It was a data DVD. I was trying to burn about 900MB of various files on my PC to a DVD-R. I haven't even considered trying other DVD formats - I just didn't get that far yet

Mmmm ... just to be sure ... you used Classic Creator and indicated you want to make a data disc, right?
But the symptoms sound more like the disc was formatted first ... the primary use of Packet-Writing is to permantly lose the data. Well, ok, my software guru told me it was for temproraily holding large files, like html websites, for which a floppy is too small, and which aren't expected to be held more than a brief time. For most users, tho, there is the delusion that means "like a floppy disc". I've been there, done that, lost the data permantly.
WinXP figures it can write the data and TOC when it gets around to it, thinking it is a permant drive, so if the disc is ejected from the eject button, it is often ejected either before the data is written or the TOC [Table of Contents] is written. No TOC, no way for the computer to find the info, and it assumes there is no disc in the drive when you put it back in.
(Short course for saving data: NEVER format the disc if you want to KEEP the data)
Lynn