Now that you’re in MTP, try un-checking Read Only again.
Otherwise, it’s going to depend on the files themselves. Where did they come from?
If they’re visible in MTP, that’s how they were transferred. I smell trouble.
If all you’re seeing is filenames, like 01-Beloved Artist-First Song, then you need to tell Windows not to Hide Extensions of Known Filetypes. Look in Windows Help for how to do that (via View in Windows Explorer, also known as Computer or My Computer). If it says 01-Beloved Artist-First Song.mp3 or 01-Beloved Artist-First Song.wma, .mp3 or .wma is the filetype.
Did you rip CDs with Windows Media Player? If so, to what format: .wma, mp3? The default in many versions of Windows Media Player is .wma with copy protection–and if copy-protected files are transferred to another computer, they just won’t play, because they haven’t had their digital-rights keys transferred with them. That may be why you are seeing a lock–I don’t know, since I won’t touch copy-protected files unless I’m wearing my HAZMAT suit.
(You can change that setting in Rip Music in Windows Media Player–uncheck Add Copy Protection, or, better yet, change the format from .wma to .mp3 at good quality, like 192 kbps or above. No copy protection in .mp3 files.)
If you still have CDs or mp3s elsewhere, your easiest choice would be to Format the Sansa–erasing all your files, so make sure you have copies.
Connected to the computer, right-click on it and Format to FAT32, or (disconnected) look under Settings/System Settings for Format and nuke it that way. Then switch to MSC. Rip the CDs to mp3 and drag-and-drop files to it.
MTP mode and Windows Media Player are necessary if you got files from places like Rhapsody To Go or Napster–they have copy-protection information that has to be transferred under deepest secrecy by Windows Media Player. If you’re stuck with those files, you’re going to have to use MTP, and you’re going to have to transfer them via WMP from the original computer, not just copy them.
Otherwise, MSC and mp3 will eliminate a lot of these problems.
Message Edited by Black-Rectangle on 11-27-2009 06:17 PM