Media File Tag Data Not Appearing In Windows Explorer

I recently installed Windows 8. I noticed that at some point the media tags stopped displaying in Windows Explorer for media files such as mp3 and m4b. I am talking about such tags as "title" , "bitrate" and "length" for audio files, for example. Previously this data always displayed for the same files.

This affects my collection of Music and Audio books which I am doing some housekeeping with. I can't sort mp3 and m4b them according to the tags that had been set in iTunes or mp3 tagger.

This has always worked previously and the tags have displayed fine.

I am using the "Detailed" viewing mode in Windows Explorer, but it is just empty in the columns where the tag should be, even for files which I know are tagged, and where the tag displayed previously, in Windows Explorer.

Here is what I found :

I ran sfc /scannow, but this did not solve the problem. I tried installing a shell extension called AudioShell135.exe which supposedly fixes problems with this, but it does not work for 64 bit OS. I read that a DLL called shmedia.dll is responsible for this functionality. Apparently some people re-registered this wisuccess when they had this problem. I did that, but it did not work either.

Could this be a regression in Win 8 or can others see the tag data for their mp3 files?