Soundmax SM-CMD3006 — обзор MP3: Технология сжатия аудио и воспроизведение файлов [27/76]

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MP3 overview

Notes on MP3:

 MP3 is short for MPEG Audio Layer 3 and refers to an audio compression technology standard.

 This product allows playback of MP3 files on CD-ROM, CD-R or CD-RW discs.

 The unit can read MP3 files written in the format compliant with ISO 9660. However it does not support

the MP3 data written by the method of packet write.

 The unit can not read an MP3 file that has a file extension other than “.mp3”.

 If you play a non- MP3 file that has the “.mp3” extension, you may hear some noise.

 In this manual, we refer to what are called “MP3 file” and “folder” in PC terminology as “track” and

“album”, respectively.

 Maximum number of directory level is 8, including the root directory. Maximum number of files and

folders per disc is 448.

 The unit may not play tracks in the order of Track numbers.

 The unit plays only the audio tracks if a disc contains both audio tracks and MP3 files.

 When playing a disc of 8 kbps or “VBR”, the elapsed playing time in the display window will not be

correct and also the intro play may not function properly. “VBR”: Variable Bit Rate.

Notes on creating your own CD-R or CD-RW containing MP3 files:

 To enjoy high quality sound, we recommend converting to MP3 files with a sampling frequency of 44.1

kHz and a fixed bit rate o f 128 kbps.

 DO NOT store more than 448 MP3 files per disc.

 For ISO 9660 - compliant format, the maximum allowable depth of nested folders is 8, including the root

directory (folder).

 When CD-R disc is used, playback is possible only for discs, which have been finalized.

 Make sure that when MP3 CD-R or CD-RW is burned that it is formatted as a data disc and NOT as an

audio disc.

 You should not write non-MP3 files or unneeded folders along with MP3 files on the disc otherwise it

takes a long time until the unit starts to play MP3 files.

 With some CD-R or CD-RW media, data may not be properly written depending on its manufacturing

quality. In this case, data may not be reproduced correctly. High quality CD-R or CD-RW disc is

recommended.

 Up to 16 characters are displayed for the name of an Album or a Track. ID3TAG version 1.x is required.

 Note that the unit may not play Tracks in the order that you wrote them to the disc.