Sony MHC-EC68USB Operating Instructions Manual page 29

"READING" is displayed for an
extended time, or it takes a long time
before playback starts.
 The reading process can take a long
time in the following cases.
 There are many folders or files on the
USB device.
 Th e file structure is extremely
complex.
 The memory capacity is excessive.
 The internal memory is fragmented.
Thus, we recommend following these
guidelines.
 Total folders on USB device: 100 or
less
 Total files per folder: 100 or less
Erroneous display
 Send the music data to the USB device
again, as the data stored in the USB
device may have been corrupted.
 The character codes that can be
displayed by this system are numbers
and alphabet only. Other characters are
not displayed correctly.
The USB device is not recognized.
 Turn off the system and reconnect the
USB device, then turn on the system.
 Connect the supported USB device
(page 35).
 The USB device does not work
properly. Refer to the USB device
operation manual for how to deal with
this problem.
Play does not start.
 Turn off the system and reconnect the
USB device, then turn on the system.
 Connect the supported USB device
(page 35).
 Press  (or  on the unit)
start play.
Play does not start from the first
track.
 Set the play mode to normal play
mode.
MP files cannot be played back.
 The MP3 file does not have the
extension: ".mp3. "
 The data is not stored in MP3 format
(see page 18).
 USB storage media formatted with file
systems other than FAT16 or FAT32
(Cluster size 512 byte  32 kbyte) are
unsupported.*
 If you use partitioned USB storage
media, only MP3 files on the first
partition can be played.
 Playback is possible up to 8 levels.
 The number of folders has exceeded
997.
 The number of files has exceeded 999.
 Files that are encrypted or protected by
passwords, etc. cannot be played back.
* This system supports FAT16 and FAT32, but
some USB storage media may not support all
of these FAT. For details, see the operation
manual of each USB storage media or
contact the manufacturer.
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