Several people are having problems with PRINCO.
I bought a MEMOREX DVD-RW, and my late model xbox didn't read the disc. I went over to compusa, and bought a "sampler" of Verbatim, Sony, and CompUSA brand DVD-RW and -R. Both the RW and R of Sony work on my system. I'm in the process of testing the Verbatim, but I think they should work as people have said they do.
I plan on just buying DVD-Rs for games I would actually play, and buy for a buck each, if I can find them that cheap. DVD-RW I would use for storing rar files (since my 100gigs feels like a 100 megs right now) and playing games I'm not really interested in.
I'll post a new review thread tomorrow. (3:14 am EST)