I bought two Traxdata 2x DVD-RW discs few days ago for backing up my data. I burnt one using NEC ND3520A and Nero 220.127.116.11 straight away without erasing or formatting it. Anyway, everything was ok. The data was burnt and readable.
However, when I tried to erase it, Nero always said it was an illegal disc and did not allow me to erase it in anyway. Everytime I tried, the data were always there. Reboot, update Nero to the newest, even tried DVDInfoPro still not worked. One thing found is, some information of the disc under DVDInfoPro disc info, such as manufacture and defined speed, are missed. However, the disc still readable.
I did suspect that could be by the drive. In order to ensure it, I opened the other DVD-RW disc and had a go. This time, I used DVDInfoPro to look the info, it showed that it was a RiTEKW01, 2x speed... everything was there. Then, I fully formatted this disc using DVDInfoPro, which took me a while to finish it.
After that, I did the first burnt on the new disc and erased the disk after the first successful burnt. Nothing wrong on this disc at all.
Has the first DVD-RW gone? Is there somehow to erase it and reuse it? What's wrong on it, if anybody knows.
I am really confused. Not a word on the bland disc case says the new DVD-RW should be fully erased before its first burn. Yet they seem to be very different in results, if the both DVD-RWs were in the same quality. I wonder if anybody get better knowledge on this issue can give me more idea.
Is that possible to damage a DVD-RW by overburning it (available option in Nero)?