Hey macgroupie,
If you are having an issue with your iPod classic not playing songs through to completion, there are a couple of troubleshooting steps you should try to correct it.
First, I would suggest resetting the iPod classic. See this article for directions -
Reset your iPod - Apple Support
In particular -
- Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.)
- Press and hold the Menu and Center (Select) buttons simultaneously until the Apple logo appears (about 6 to 8 seconds). You might need to repeat this step.
Test your iPod at this point to see if songs will now play all the way through. If your issue is still not resolved, you may need to restore the iPod classic to factory settings. This article gives directions -
Restoring iPod to factory settings - Apple Support
Thanks for using Apple Support Communities.
Happy computing,
Brett L