I called tivo to let them know that I was getting errors again burning disks. Well the 1st time they told me to try and used a dvd cleaner on it so I did, even restarted it and had no luck--still saying "saving failed" and "internal error". So i called back and this time the CSR gave me a code to put in. he said that it was quite possible that part of teh hard drive had bad material on it and that he the tivo needed to run a disc scan. He had me put in a code as the tivo was rebooting. It consisted of holding the pause button then hitting 5 and 7 at a certain time. The tivo then kept going thru its normal startup. Then all of a sudden a green comes up with a statement that a serious internal error had been found and teh tivo needed to fix it. It said it may take up to 3 hours to fix. At this point I thought that I was going to lose everything on the Tivo. But lo and behold about 10 minutes later the Tivo rebooted and started . I wwas not expecting anything to change but I tried to burn a disc and IT WORKED--I was able to burn 2 more discs with sucess last night . I was really suprised but as for now the code that he gave me worked and is worth a try to anyone having issuses. If you want to know the exact code and teh exact timing for teh code just let meknow--its really weird.