Spoke with Sony rep today. According to her, Sony has "not yet" fixed the "Lip Sync" promblem on the 530. They are aware of it and are still looking for the cause. If you are concerned, you need to call them and give them your information ie name etc. and DVD serial number. Once they have the "fix", they will notify you and will repair your DVD player for free, regardless of how old it is. Be ready for a run around though. It took me two days to get ahold of an actual person to speak with. Their customer service phone numbers send you on a never ending goose chase, "press 2 the press 4, then press 3, then call 1 800.... and it goes on and on.
Hope this helps,
Sean