RCA OPAL M4208RD-B Goes to please wait screen and stays.
Make sure the lock switch on the back is in the unlocked position. For the player to say "Loading," especially the first time you plug it into the computer, is normal - your computer is communicating with the player, installing drivers, and trying to load the Easy Rip Software. If it stays on loading past 10 minutes, however, something is not right. If you have selected to open the device automatically using Windows Media Player, you are headed for trouble, especially if you have more music and other files on your computer than the mp3 player can handle. If you have accidentally done this, disable auto-sync in Windows Media Player.
If you have checked the above, and you are still having problems, disconnect the mp3 player from the computer. Hold in the power button for 10 seconds or more to reset the mp3 player. Try plugging the mp3 player into the computer again. If it stays on loading for more than 10 minutes, unplug the mp3 player, go into the settings menu and change the mode from MSC to MTP or vice versa. If it still misbehaves when you replug the mp3 player into the computer, download the latest Easy Rip software from RCA's website and update your player's firmware - take note of the section they have on Windows Vista if you have Windows Vista. Good luck!
-Tha Mp3 Doctor