Aiwa XP-Z3C Car Stereo System User Manual


 
ENGLISH
17
ENGLISH
NOTES ON MP3 FILES
An MP3 file stores audio data
compressed using MPEG1/2/2.5, the
audio layer-3 file-coding scheme.
In this manual, CDs, CD-R discs and
CD-RW discs are all referred to as
“discs”. We refer to what are called
“folder” and “file” in PC terminology as
“album” and “track”.
Notes on playing MP3 files
An MP3 track must be recorded on a disc
in the format compliant with ISO 9660.
Note, however, that the unit may not play
tracks in the order they were recorded.
The maximum allowable number of tracks
and albums in a disc are as follows:
– number of tracks : 512 (depending on the
number of albums)
– number of albums : up to 255 (depending
on the number of tracks)
The maximum allowable depth of nested
albums is 8.
E•A•S•S memory duration is approximately
100 seconds at the longest with tracks of
128 kbps bit rate.
It may take 30 seconds or more before the
unit can start play of MP3 tracks, depending
on the number of recorded tracks and the
complexity of the album tree.
If a disc contains audio (CD-DA) tracks and
MP3 tracks, the unit plays only the audio
tracks.
The unit may not play MP3 tracks recorded
using a packet writing utility.
The unit can play MP3 tracks having a file
extension “.mp3”.
If you play a non-MP3 track that has the
“.mp3” file extension, you may hear some
noise.
This unit can play back MP3 files of the
following bit rates:
MPEG1/Audio layer-3: 32k-320 kbps
MPEG2/Audio layer-3: 8k-160 kbps
MPEG2.5/Audio layer-3: 8k-32 kbps
This unit is best suited for playback of
tracks with a bit rate of 128 kbps. The
sound may be intermittent or distorted
during playback of tracks encoded with a
certain encoder or encoded with bit rate
over 128 kbps.
The elapsed playing time may not be
displayed correctly when variable-bit-rate
(VBR) files are played.
Sound is muted for a moment with the disc
that contains no silent portion between
songs (tracks) such as a disc with a
recording of a live performance, etc.
When files encoded with the MP3 Pro
format are played back, their sound quality
may not be as high as they should be.