I get the same problem with xubuntu edgy eft and already saw it with xubuntu dapper drake on my 8 years old laptop.l Both usb and cdrom hang after copying some mb, both when i am copying from filemanager thunar to the desktop and when copying via cp. When copying from cdrom i am able to copy a bigger amount of data than from usb before it hangs. As the connection to the cdrom is faster, i guess its more time depending problem and not the amount of data itself is causing the crash.
regards, wen -- usb flash memory hangs after copying few MB https://launchpad.net/bugs/17881 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs