No worries, glad you have it running. Sometimes, Windows Media Player can have issues with transfers. Thankfully, it doesn’t happen too often. Using MSC mode, you have somplete control of the transfer, and the device is seen as a mass storage device by the computer. As long as your files have embedded album art, the Zip will use these images and all will be fine.
MTP mode is a “virtual” layer over MSC, where the player is addressed as a media device. As such, many things are automated in the background. Album art is sent to a special “albums” folder, and other information, such as the Clip Zip’s secure clock and device ID can be accessed for DRM needs (protected media) if needed. Oh, playlisting with .pla format lists is also possible- these lists are not path-specific as in MSC, meaning that folders and even whether the file is on the microSD card doesn’t matter.
Windows Media Player is happy with either mode, incidentally.
With the Clip Zip, the USB controller only handles one mode at a time for access. This is probably the one quirk that causes the most confusion. If you transfer a file in one mode, then switch to the other, the files you transferred in the alternate mode will not be visible from the computer, even though the Clip Zip itself can see both. For this reason, we recommend that folks choose one mode and stick with it, so that you can access everything from the computer.
Oh, one last thought- yes, you can simply drag and drop your music files to the music folder, and the player will locate them based upon the ID3 tags (album / artist / genre / song). For podcasts or audiobooks, you can drag the files to those folders, giving you additional functions for those files (elapsed time, playback speed).