We've used it the last few years for show packages that had hundreds of 1-minute graphics to playback, I really enjoyed using it. The only problem we had was our own fault - on one of our machines we forgot to enable the alpha channel (it has its own unique dropdown tucked under "format options" I believe).
We've had no trouble rendering direct to DXV in a few years of use from both Macs and PCs.
Of course, it's a QuickTime codec so it's not supported on QuickTime Player X, but as long as you have the QT component and QuickTime Player 7 installed, it shouldn't be an issue.
Just wondering if anyone can share experiences with the DXV codec? We are working on a big event and the staging company has changed playback devices from Pandora to D3. We were originally just delivering ProRes files, now we have been asked to deliver DXV files instead. While the codec is free and seems to work just wondered if anyone has had any previous issues or compatibility problems with various OS etc etc. Basically we will have to convert hours of very high-res clips on-site with all clients present and don’t want to discover the hard way that it doesn’t work with OS version z for example, or that trying to render directly from After Effects crashes the system every third time and so on…