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Windows 7 incorrectly reports zero used space on rewritable media onto which you burned files or folders in "Mastered" mode


Consider the following scenario. You burn files or folders onto rewritable media in a Windows 7 system in "Mastered" mode (CD/DVD). That is, you burn the files or folders so that no more burning or additions or deletions are possible. In this scenario, Windows 7 explorer incorrectly reports zero used space on the media. (That is, Windows 7 explorer shows the media as being blank.)


This issue occurs because of an incorrect disk free-space calculation sequence in Windows 7.


The issue is resolved in Windows 7 Service Pack 1 (SP1). You can install Windows 7 SP1 to resolve this issue.

More Information

This problem has been reported for DVD-RW, DVD+RW, DVD-RAM, and BD-RE disks. Windows 7 SP1 resolves this issue for all kinds of disks.

Be aware that on Windows 7 earlier than SP1, although the available disk space reporting may be wrong, the actual data written to the disk is not lost.


Article ID: 2006381 - Last Review: 06/21/2014 14:05:00 - Revision: 7.0

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