[QUOTE=geno888;2010387]Is ImgBurn able to recognize the disc? If yes, then there is a software problem with cd-dvd speed.
If not, its’ possible that the drive has a problem. Can you try to install that drive on a different computer?
Another possibility is that you are using very low quality discs. What discs are you using?[/QUOTE]
Yes, ImgBurn recognizes the disc when in the new DH20A4P drive, as does DVD Identifier. It’s also recognized in my other drive, a LG H55N. I only have one computer, so there’s no chance to install the new Lite-On in a different computer. I’m using Verbatim DVD+R DL, MKM001, made in Singapore.
My MIS spindles on hand vary somewhat in quality. Some are midway between the old traditional top-quality MIS discs and the new MII junk, and one MIS spindle is almost indistinguishable from MII. These spindles were purchased last fall when the changeover from MIS to MII was occurring, and I figure they got their packaging mixed up.
After playing around awhile, I finally got Nero CD-DVD Speed to recognize the disc again, except it can’t read the disc ID. Thereafter, a quality scan won’t work (that tab is grayed out), but the disc info and disc scan tabs work. However after running a disc scan, Nero CD-DVD Speed crashed completely - encountered a problem and needed to close…
Other discs now work with Nero CD-DVD Speed again, which will do a quality scan on them, but my impression is the drive is slow to recognize DL discs. Sometimes they’re not recognized by Nero CD-DVD Speed on the first try, but work after 2-3 tries. Single layer discs such as TYG03 are recognized faster, I believe(?). I haven’t timed it, but this DH20A4P is pretty clearly slower to recognize discs than my prior Lite-On LH-20A1P or my LG-H55N.
Windows Media Player was probably interfering, and it might still be… It popped up automatically when I inserted a movie disc. I got it to stop by going throught the autoplay settings and told the computer to ‘take no action’ with all kinds of discs.
I also note that the TA Jitter tab is missing in Nero CD-DVD Speed with this new DH20A4P drive. It was present with my former LH-20A1P drive.
I’ll burn another MKM001 disc from a known top-quality MIS spindle to rule out the possibility of a bad disc.
I’m still pretty confused. Does that info help with the diagnosis?