Blaupunkt MP71 operating instructions MP3 mode, MP3 Mode, Preparing the MP3 CD

MP3 MODE

MP3 mode

On the Los Angeles MP71 you can also play CD-Rs containing MP3 music files.

MP3 is a process developed by the Fraun- hofer Institute for compressing CD audio data. Compression allows data to be reduced to around 10% of their original size without a noticeable loss in quality (at a bit rate of 128 Kbit/s). If a lower bit rate is used to convert CD audio data to MP3, you can create small- er files but there will be a loss of quality.

Preparing the MP3 CD

The various combinations of CD burners, CD burning software and CD blanks may lead to problems arising with the ability to play cer- tain CDs. If problems occur with your own burned CDs, you should try another brand of CD blank or choose another blank colour. Best results are achieved with CD blanks that provide 74 minutes of playing time.

The format of the CD must be ISO 9660 Lev- el 1 or Level 2. Other formats cannot be played reliably.

Avoid multi-sessions. If you write more than one session to the CD, only the first session will be detected.

In order to avoid overly long access times, you should not create more than 20 directo- ries on any MP3-CD that you want to play on the Los Angeles MP71 (though a maximum of 127 directories are technically possible). These directories can be individually select- ed on the Los Angeles MP71.

Each directory can contain up to 254 tracks and subdirectories, which can also be select- ed. A maximum of 8 levels of directories are allowed.

Fig. 1			Fig. 2
D01			D01
			T001
	D02		T002
			T003
			T004
	D03	D04	T005
			T006
	T001	T001	T007
			T008
	T002	T002
			T009
	T003	T003
			T010
	T004	T004
			T011
	T005	T005
		T006
		T007
	D05	T008
		T009
	T001
		T010
	T002
		T011
	T003
	T004
	T005
	T006
	T007

Since using some burner software can lead to inconsistencies in the way items are num- bered, you should ensure that the root direc- tory D01 either contains only subdirectories containing tracks (Fig. 1) or only tracks (Fig. 2).

Each track can be named using the PC. The directory name can be displayed in the Los Angeles MP71’s display. Name the directo- ries and tracks using your CD burner software. The software’s operating instructions will pro- vide details on how to do this.

Note:

●When naming directories and tracks you should avoid using special characters.

If you like your files to be in the correct order, you should use burner software that places files in alphanumerical order. If your software does not provide this feature, you can also sort the files manually. To do so, you should

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