JVC HR-XVS44U Supplementary Material - Page 62

62 EN About MP3/WMA Disc This unit can playback CD discs recorded by the MP3/WMA format (we refer to those discs as MP3/WMA discs in this manual). Operations for MP3/WMA discs are similar to those for Audio CD discs, though there are some restrictions and differences. What is MP3? MP3 is the abbreviation of "MPEG1 Audio Layer 3." MPEG Audio is a compression specification that compresses the audio portion only. This image compression method is used in DVD or Video CD, etc. The audio data has been compressed into about 1/10. What is WMA? WMA is an abbreviation of "Windows Media Audio", and is an audio data compression format developed by Microsoft Corporation. Sound quality of data compressed using WMA is the same as that of MP3, though the WMA file size is smaller than that of MP3. On an MP3/WMA disc, each material (song) is recorded on each Track (file), which usually belongs to a Group (folder). OPERATIONS ON DVD DECK (cont.) NOTES: ● Because of the disc characteristics or recording condition, some discs may not be played back or it takes time to start playback. ● The unit does not support "packet writing" discs. ● If there are any Tracks (files) which are stored on a disc directly and do not belong to any Group (directory), the unit recognized them as belonging to an independent Group. ● The unit plays back Groups/Tracks on an MP3/WMA disc in the alphabetical order. ● For example, if there are three title Groups [one], [two] and [three] on a disc, the playback order is [one], [three] then [two]. Tracks in a Group are played back in the same way. ● Therefore, an MP3/WMA disc on the market may be played back in the different order from the order printed on its sleeve. MP3/WMA control display The MP3/WMA control display appears on the TV screen and playback starts when an MP3/WMA disc is loaded. Total group number on Current track Total track number disc number in current group * MP3 disc Track A.mp3 Track B.mp3 Track C.mp3 Group 1 Group 2 Group 4 Track D.mp3 Track E.mp3 Track F.mp3 Current group number Current group Current track Total track number on disc * Elapsed playing time of current track Elapsed playing time is only shown during playback. Group 3 This unit can recognize up to 99 Groups and up to 150 Tracks per Group. If a disc includes more than the Tracks above limit, the unit stops detecting Tracks when the number of detected Tracks reaches the limit and ignores the subsequent Tracks. The unit also ignores any non-MP3/WMA file in the disc. NOTES for making a private MP3/WMA disc using a CD-R/CD-RW disc: ● Select "ISO9660" as the disc format. ● Finalize the disc.