I think this is DRM related issue. It seems like the prime has no option (or purposely removed) to be mounted as Mass USB Storage. The only option available is to mount it as MTP or as a Camera.
I can copy small files in and out fine with MTP. However, I think it checks for file types and warn/deny certain ones that the prime should not be able to play, even though you have an app installed you know can play it. It's really annoying specially when copying multiple files and you come back to your computer to find out it stopped copying because of a stupid warning or question.
Whenever I copy large or small .mkv files, explorer.exe just tanks and quits. I think ICS or some DRM app is doing this on purpose for movie files. .avi files seems fine but gives a warning. But when all else fails, I can pull out the external sdcard and copy the files through a reader.
Is there a way to force it to mount as as a USB Mass Storage device like my other android device? Or was this option removed now from ICS as Google gets stricter with DRM related issues? I wonder if the Nexus can be mounted as a USB Mass Storage rather than MTP?
Any ideas guys?
PS. It's kind of silly that they brag you play HD movies and the screen can show them in HD, but you can't copy any HD formatted files either because of DRM restrictions or the sdcard format can only handle movies with 4gb or less (which is not HD quality anymore). The only thing its good for is to shoot your own HD videos with the camera and play that video in HD, which you can do with your phone better since it's smaller and easier to maneuver.
And they say the new T700 is coming out with 1080p, I say its useless unless they can mount the drives with ntfs or ext4 with faster read/write throughput to prevent lags.