Solves mp3 player won't play when charging problem: 25cm USB POWER ONLY Extension Extender Cable - £1.59 @ eBay Rhino Cables Outlet
If like me you bought a SanDisk Sansa Clip or other mp3 player that does not play when being charged via USB, this problem should be solved by this cable.
I think the SanDisk Sansa Clip is great value but has this annoying problem - which is actually due to the USB cable used to charge it.
Also solved this problem -
"It allows you connect the appropriate device cable and charge the device through your USB port on your PC/Laptop with out opening up your webstore, itunes etc."
USB Power ONLY Cable
Type A male to type A female
Gold flashed contacts