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MP3 files
● ID3-Tag: Display of Ver1.x, 2.x album
(displayed as Disc Title), track (displayed
as Track Title) and artist (displayed as
Track Artist) are supported.
● Emphasis: Supported only when playing
44.1 kHz files
● Playable sampling frequencies
MPEG1: 44.1 kHz/48 kHz/32 kHz
MPEG2: 22.05 kHz/24 kHz/16 kHz
MPEG2.5: 11.025 kHz/12 kHz/8 kHz
✽ In terms of audio quality, 44.1 kHz or
higher is recommended.
● Playable bitrates
MPEG1: 32 kbps to 320 kbps/VBR
MPEG2: 8 kbps to 160 kbps/VBR
MPEG2.5: 8 kbps to 160 kbps/VBR
✽ In terms of audio quality, 128 kbps or
higher is recommended.
● Jumping sometimes occurs with files
recorded at the following sampling
frequencies and bitrates:
Sampling frequency: 16 kHz or less
Bitrate: 8 kbps or less
● MP3i (MP3 interactive) and mp3 PRO
format are not supported.
● Skipping sometimes occurs depending
the data content of the MP3 file.
● Files with a short recording time
sometimes cannot be played.
● When discs (NX603 only)/microSD
cards/USB memory contain large data
other than music data, tunes sometimes
cannot be played.
● Display of the play time sometimes
deviates when low bitrate files are
played, or fast-forwarded or rewound.
● When TAG information is changed in TAG
editing software other than Windows
®
Media Player or iTunes
, TAGs are
sometimes not displayed properly.
48
NX603/FX503
WMA files
● Characters in album names sometimes
are corrupted depending on the software
on the PC where the names were made.
● WMA9 Professional, WMA9 Voice and
WMA9 lossless format are not supported.
● When discs (NX603 only)/microSD
cards/USB memory contain large data
other than music data, tunes sometimes
cannot be played.
● Display of the play time sometimes
deviates depending on the data content
of the WMA file. Also, skipping or
jumping sometimes occurs partially or
noise sometimes occurs depending on
the bitrate.
● The sampling frequency and bitrates
that can be played differ according to
the recording version. Refer to the table
below.
Bitrate (kbps)
Sampling frequency (kHz)
192
44.1
160
44.1
128
44.1
96
44.1
80
44.1
64
44.1/32
48
44.1/32
44
32
40
32
36
32
32
48/44.1/32/22.05
Bitrate (kbps)
Sampling frequency (kHz)
22
32/22.05
20
44.1/32/22.05/16
16
22.05/16
12
16/8
10
16/11.025
✽
✽
8
11.025
/8
✽
6
8
✽
5
8
VBR
48/44.1
✽ Jumping sometimes occurs.
Folder structure of discs
The maximum number of folders, files and
tracks on discs are as follows:
Folders: 255 (including root)
Files:
512
Tracks: 255 per folder
The following is an illustration of a disc
recorded with MP3 and WMA files (example,
layers 1 to 4 of the folder hierarchy).
(1)-- Song A
(2)
(3)-- Song B
(4)
(5)-- Song C
(6)
(7)
(8)-- Song D
(9)
(10)-- Song E
(11)
(12)
(13)-- Song F
(14)
(15)-- Song G
(16)
Level 1
Level
Level
Level
(Root)
2
3
4
Folders without tunes are skipped to
determine the play order.
The play order in the case of the above figure
becomes (1) (3) (5) (8) (10) (13) (15).
Notice
In the case of discs, playing files down to
eight layers (including the root directory)
is supported, though it may take time
until play starts when the disc has lots of
folders.
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