"..With firmware 1.02 , if the computer is turn on with one Cdrw inside, most of the times, the L write led start flashing and the CD can't be read. With firmware 1.01, that don't happens.

Note: This is a confirmed bug, because I have sent mails to 4220 owners, and all have the same problem. Plextor support advise me to stick with the old firmware, but they, as always, didn't admit that the BUG exist.."