Sony XAV-72BT Operating Instructions Manual page 70

USB Reading...
The unit is reading all file/album (folder) information
in the connected USB device.
t Wait until reading is complete and playback starts
automatically. Depending on the structure, it may
take time.
" " or "
During reverse or fast-forward, you have reached the
beginning or the end of the disc and you cannot go any
further.
" "
The character cannot be displayed with the unit.
If these solutions do not help improve the situation,
consult your nearest Sony dealer.
If you take the unit to be repaired because of disc
playback trouble, bring the disc that was used at the
time the problem began.
70
"