Certain DVD disc can able to openSONY DVD RW DRU-810A, But I am unable to open with SONY DVD RW DW G521A. Kindly advise me to further course of action.

You have to update the firmware. Go to http://sony.storagesupport.com/product/100
Download the instructions and the file with the recent firmware. I did it, No problems, no difficult.

You can try installing the driver first ,but you can also try just installing the drive then reboot and go to this link http://www.fixya.com/support/r5003649-find_24_trubleshooters_in_windows7 looking about half way down,you'll see a tool for fixing that drive.
Good luck.
Please rate my sollution.....

http://sony.storagesupport.com/

Have you tried to go into Device Manager to see if there is any hardware or Firmware upgrades or try the Sony site! Check the link below.

http://www.cdrinfo.com/forum/tm.asp?m=122045

An exclamation point means that there is a problem with the device. Could be as simple as a corrupted driver. Try unistalling the drive from Control Panel>Add/Remove Harware. Reboot; then reinstall drive. Hope this helps.

get version 1.0f from Sony:
http://sony.storagesupport.com/product/121
all will be okie :)

regards

Hello,

The Problem Is That You Do Not Have Enough Space In Your Windows Drive.

If You Have Just about 1GB Still May Be Not Enough According To Your ROM

You Should At least Have 4.5GB Free In Your Windows Drive For Disc"s to Perfectly Burn.

Good Day,
Im A FixYa Professional - email - [email protected]

check your boot order in your bios and set your cd drive to first boot

try using TDK disks i rarely have a problem with them try doing a drive test using a blank dvd

some dvd brands dont work with all dvd writers, so your option is to try another make, if that works ok then it's not a writer fault it is just that the media make is not compatable. if you start to see problems with all makes of disc then the writer laser is faulty and a replacement drive neccasary.