Panasonic DMR-ES10 DVD-Recorder

This unit was purchased to archive years of VHS tapes and to replace a VCR. I am 99% satisfied with my purchase. This is an awesome DVR for the price. I have copied about 150 hours worth of science shows which were originally recorded from satellite TV. In LP mode (4 hrs/DVD), it easily surpasses the quality of the source. Granted, the source was 240 lines of res. VHS, but in 1 or 2 hr mode it's recordings are indistinguishable from digital TV. Every copy I have played has performed perfectly (although I have not viewed the entire 150 hrs.) The only problem has been a consistent error message at 3:20 into a 4 hr recording, when using cheap DVD-R's, that ceases the recording of the program, and an annoying "skipping" at chapter points when finalized DVD-R discs are played on OLD, off brand DVD players. Maybe it was just an unlucky choice of DVD brand; I didn't try other brands. Panasonic discs always give you 4 hrs in 4 hr mode and play perfectly on Panasonic players.