RCD 120BT • MANUALFR1.3.5.11.2.6.108.7.16209. B4.· MP3 is short for MPEG Audio Layer 3 and refers to an audio compressiontechnology 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 somenoise.· In this manual, we refer to what are called “MP3 file” and “ folder” in PCterminology as “ track ” and “ album ”, respectively.· Maximum number of directory level is 8, including the root directory. Maximumnumber of files and folders per disc is 256.· 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 andMP3 files.· When playing a disc of 8 kbps or “VBR”, the elapsed playing time in the displaywindow will not be correct and also the intro play may not function properly.“ VBR ”:Variable Bit Rate.· The unit supports the playback of WMA files. The playback of ID3 tags for WMAformat is not guaranteed, it depends on versions and availability of Cyrillicalphabet.· WMA (Windows Media Audio) -music data compression format, created byMicrosoft Corporation. This format uses coding algorithm for compression ofinitial audio-record, greatly decreasing the file size, but, saving the good soundquality even when the bit rate is low (for example, 64 Kbit/s).· Remember that the unit may not play the tracks in order they are written on disc.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 asampling frequency of 44.1 kHz and a fixed bit rate o f 128 kbps.· DO NOT store more than 256 MP3 files per disc.· For ISO 9660 - compliant format, the maximum allowable depth of nestedfolders is 8, including the root directory (folder).· When CD-R disc is used, playback is possible only for discs, which have beenfinalized.· Make sure that when MP3 CD-R or CD-RW is burned that it is formatted as adata disc and NOT as an audio disc.· You should not write non-MP3 files or unneeded folders along with MP3 fileson 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 dependingon 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. ID3TAGversion 1.x is required.· Note that the unit may not play Tracks in the order that you wrote them to thedisc.