Udfs.sys – Pre Service Pack 2 Revision History for Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Small Business Server 2011 (SBS 2011)

07-Nov-2011 – 6.1.7601.21856 – Udfs.sys – http://support.microsoft.com/kb/2614451 – “STOP: 0x0000007E” error occurs when you write some data onto a CD or DVD in Windows Server 2008 R2 or in Windows 7

14-Sep-2011 – 6.1.7601.21818 – Udfs.sys – http://support.microsoft.com/kb/2583905 – Slow performance when you copy more than 10 gigabytes of data to a Blu-ray disk in Windows 7 or in Windows Server 2008 R2

09-Jul-2011 – 6.1.7601.21767 – Udfs.sys – http://support.microsoft.com/kb/2566584 – The content of some DVDs cannot be read by Windows 7 or by Windows Server 2008 R2

09-Jul-2011 – 6.1.7601.17647 – Udfs.sys – http://support.microsoft.com/kb/2566584 – The content of some DVDs cannot be read by Windows 7 or by Windows Server 2008 R2

18-Dec-2010 – 6.1.7601.21624 – Udfs.sys – http://support.microsoft.com/kb/2411000 – You cannot read or copy a file that contains an asterisk character in the stream name in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2