Media details in the status bar and in the Details pane can be easily shown by installing Property Handlers and then by simply editing the Registry. It is not necessary to add any extra support to Classic Shell to display them.
First, you just need to have the appropriate Property Handlers installed for those file types. Installing these is recommended because even though Windows itself ships with property handlers for many formats, overall less properties are exposed in Explorer compared to third party property handlers.
AudioShell 2.0 (free) installs property handlers for audio formats (3GP, AIF, AIFF, APE, ASF*, DSF, FLAC, M4A, M4B, M4P, M4V*, MP+, MP1, MP2, MP3, MP4*, MPC, OFR, OFS, OGG, SPX TTA, WAV*, WMA, WMV*, WV) .
Similarly,
Icaros (free) installs property handlers for some audio and video formats (MKA, MKV, OGG/OGV/OGM*, FLV, RM, AVI/DIVX, *APE, FLAC*, MPC*).After installing these property handlers, what the tooltip/infotip shows can be controlled by editing the Registry. Additionally, you can also tweak what the Details Pane shows.
I will explain with an example of one file type: AVI
Go to the following registry key:
HKEY_CLASSES_ROOT\SystemFileAssociations\.avi
There, you will see string values, ExtendedTileInfo, FullDetails, InfoTip and PreviewDetails. These control what properties are shown respectively in the Explorer Content view, Properties Details tab, Tooltip and Details Pane.
Edit the value of "Infotip" to add or remove properties which you want to show in the status bar (Status bar and infotip display the same thing). Repeat this for more file types you want and add the properties that you want to show. That's it, you don't even need to restart Explorer for changes to take effect.