Burning at 1x is worse than buning at say 8x - some discs (even though they say 1-16x), arn't optimised for 1x burning. You're using 1x probably due to the limitation in the Juggler "demo"?
Also, Iv'e never had a problem with ANY Memorex cd's - 100's have worked fine in my second-hand DC. The same goes for Traxdata and Verbatim. However a friend did have some problems with Ritek dics: he had to use the machine for an hour before some games would load, i.e. Motal Kombat. Perhaps it is indeed your laser that needs a slight adjustment.
Sorry for not having anything more solid to go with at the moment..
Problems with 1x recording in Juggler? mail me at
[email protected] and I'll send you some links..
:-) :-)