DVD-RAM with bad sectors?

[bmwracer]

Hi all,

I recorded a TV program on my Panasonic DMR-ES10 using a DVD-RAM disc (Panasonic brand) and I continually get an "Internal I/O Error" when I try to copy the files onto the HD of my PC (Pioneer 107D disc reader/burner) and the copy process terminates.

DVDInfoPro indicates that their are bad sectors on the DVD-RAM disc, yet when I play the DVD-RAM disc on my ES10 I don't see any apparent problems. Could the Panny has a better laser and/or error-correction setup?

Regardless, I've done this many times with no problems, but every now and then this problem crops up and I can't copy the files to HD.

Is there a program or some more robust file manager software that will allow me to copy the files from a (supposed) bad DVD-RAM disc?

Any suggestions or recommendations would be greatly appreciated.

Thanks!

[bmwracer]

After some experimenting and profanity-laced tirades, I managed to completely extract the data from the "bad" DVD-RAM disc:

1. Ran DVD Decrypter to extract an ISO file to disc. This took about 3-1/2 hours because of the apparent bad sectors.
2. Burned a new copy with Nero, using a DVD+RW disc and the newly created ISO file.
3. Out of paranoia, checked the burned DVD+RW disc using DVDInfoPro: no bad sectors.
4. Copied the VRO file from the DVD+RW disc to my HD: no problems
5. Renamed the VRO file to MPG and verified the quality and completeness of the file: no noticeeable glitches in the video or audio.

A rather convoluted process, but I can't complain about the results.

I totally expected some glitches in the video/audio since the DVD-RAM supposedly had bad sectors, thus bad data, but nothing.

It's rather inexplicable.

Anyone care to chime in on this?

[bmwracer]

Yikes, had yet another DVD-RAM recording with bad sectors and it's worse than previous occurences. This is totally inexplicable.

Does anyone here have any ideas on why this is happening? Could it be the recorder or the media itself (I think the more likely suspect)?

I know someone on another thread mentioned that the DVD-RAM discs should be erased and not formatted on a regular basis, but I can't quite understand why that would make any real difference....

Thanks in advance.