Users that have experience glitches in scenarios involving the burning of DVDs from Windows 7 might find a resolve with Microsoft, provided that the issues were generated by Udfs.sys. Microsoft has made available an update designed to take care of three problems associated with the Universal Disk Format (UDF) file system driver (Udfs.sys). The refresh in question is available for both Windows 7 RTM and Windows Server 2008 R2 RTM.
Microsoft described the first problem that Windows 7 users are likely to come across: “You try to back up some large files to a DVD-RW by using Windows Backup in Windows 7 or in Windows Server 2008 R2. However, the backup operation fails and you receive an error message that resembles the following: “Logical Block Address Out of Range (SCSI_ADSENSE_ILLEGAL_BLOCK).” Additionally, the Eject function does not work.”
The Udfs.sys update for Windows 7 and Windows Server 2008 R2 is currently up for grabs from Microsoft. However, in this sense the refresh is designed more like a hotfix. Microsoft is not serving the fix through Windows Update and had not posted the bits on the Microsoft Download Center. Instead the hotfix can be downloaded from Microsoft Support. More »