07-02-2011 12:40 PM
I have been a lucky owner of a T400s so far, but as today, I have noticed that I cannot read DL DVDs anymore (nor can I write those). To be honest, it's been ages since I have had a reason to be able to do so, but I definitely know that I have been able to read/write DL DVDs on my T400s before upgrading to Windows 7.
Any idea how to go about this ? I have been browsing through forums and knowledge bases, but wasn't able to find any meaningful procedures.
What kind of information do I need to provide so that somebody might have an ecucated opinion ?
07-05-2011 11:28 PM
07-07-2011 02:05 PM - edited 07-07-2011 02:06 PM
just to be sure; you are referring to Dual-Layer DVDs right ?
Anyway, I believe that this might help : http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS001598
Whilst it is nice to have a version of WinDvd that is newer, this does not resolve the problem.
If it does not help, could you explain more? Did this occur after upgrading to Win7 ? What was the OS before this ?
Actually, here a few symptoms I am observing:
Does this make it clearer ?
And wrt your last question, I do believe that before my upgrade from Windows Vista (as it came installed) to Windows 7, this worked just fine (but then again, I am not trying to view DL DVDs that frequently).
And one last thing: Nero's Information Tool seems to indicate that the drive has support for DL-R and DL+R (writing and reading).
07-07-2011 06:27 PM
I don't have any Lenovo-specific advice for you, but I've seen weird CD-drive behavior caused by buggy third-party software installed on the machine. Because third-party software can install storage filter drivers, the software can disrupt the normal operation of the CD drive even while it's not running.
Once, I had a similar problem with my CD drive (unable to read CD-R media). The problem was caused by iTunes -- when I uninstalled iTunes, the problem went away. Try uninstalling any cd-burning and dvd-burning software, because this software is likely to install filter drivers.
There is a troubleshooting tool from Microsoft for CD drive problems; maybe this troubleshooting tool will disable bad filter drivers automatically. It's worth a try: http://support.microsoft.com/mats/cd_dvd_drive_problems/en-us