For about a year I have with my two (!) Philips CD recorders (CDR 760 and CDR 775) increasing problems with the correct record, both with Sony CD's as well as with all other CD-Rs for Music Audio, probably all are now produced at one or two manufacturers in Taiwan. Either the Sony CD-R is recognized as storage media NOT ("OPC FAIL") or he is after a few seconds "full", it is an "update" done automatically and then you can see the CD wegschmeissen- for a unit price of almost 2 !!! I was on suspicion of fraud SYSTEMATIC buyer (the providers have no Qualitättskontrollen ???) complained to the Consumer! So: Sony CD Blanks are usable in my experience only exceptionally for the purpose for which they are sold!