Earlier this evening I was having a discussion with a friend asking him how he liked Directory Opus after he had asked my recommendation for a replacement for Windows Explorer. He said he tried it, but gave it up because it didn't do one thing that he has long done with Windows Explorer.
In Windows Explorer, in a window with a tile view, you can hold down CTRL and then use the mouse wheel to dynamically resize the tiles. I tried this in Dir Opus and it doesn't seem to work, so I thought I'd come here and make the suggestion, as I assume Dir Opus attempts to offer at least all the features of Windows Explorer and then some.
While I was screwing around, I also noticed that the Lister Viewer Pane doesn't seem to know what to do with M4V files but handles MP4 files with aplomb. Is there something special about M4V files that make them more difficult to work with? Right now it just shows me a HEX view of the file.