I have a Sansa Clip 4GB. I’d copied a couple of .avi files to the device after creating a folder in the Media directory. The problem I face is now that I’m not able to copy it to another PC. When I try to do that its showing an error message there is no storage space to complete the operation, eventhough there is enough space. The problem happens for only .avi files. All other files can be transferred between the device and PC without any issues. Can someone please suggest a solution for this.