OEM Systems CH-4100 operation manual CD/DVD/MP3/WMA Information

CD/DVD/MP3/WMA Information

Media Compatibility

The following types of discs/files are compatible:

•CD-ROM (ISO), CD-R, CD-RW, DVD+R/RW, DVD-R/RW, DVD-R/DL

•CD-DA, DVD Video

•MP3 data

•WMA data

The following types of discs/files are not compatible:

•WMA files that are protected by DRM (Digital Rights Management)

•WMA lossless format

•Discs recorded with Track At Once or packet writing

•MP3 PRO format

•MP3 playlists

•WAV format

•WMV format

•JPG format

•DivX format

•AVI format

•MPG format

Some recordable DVDs and CDs may be incompatible with this unit, depending on media type and recording method.

Playback Order

MP3/WMA playback sequence is based on recorded order of files and begins in the root folder of the disc. Any empty folders or folders that do not include MP3/ WMA files are skipped. This unit may not play files in the order they were recorded in. Refer to your recording software’s user’s manual for more information.

Compatible Recording Formats

•ISO9660 level 1

•ISO9660 level 2

•Yellow Book MODE 1

•Yellow Book MODE 2 FORM 1

•Multi session

•Maximum files - 1500

•Maximum folder levels - 8

•MPEG-1/2 Audio Layer-3

•

ISO9660 standards:

•Maximum nested folder depth is 8 (including the root folder).

•Valid characters for folder/file names are letters A-Z (all caps), numbers 0-9, and “_” (underscore). Some characters may not be displayed correctly, depending on the character type.

•This device can play back discs in Joliet and other standards that conform to ISO9660. MP3/WMA written in the formats other than the above may not play and/or their file names or folder names may not be displayed properly.

Additional MP3/WMA Information

An internal buffer provides ESP (Electronic Skip Protection) to virtually eliminate skipping.

When playing a disc recorded with regular audio files (CD-DA or .WAV) and MP3/WMA files, the unit will play the MP3/WMA files only.

Only MP3 files with filename extension (.mp3) can be played.

Only WMA files with filename extension (.wma) can be played.

Do not attempt to play discs which contain NON-MP3/WMA files with the MP3/WMA extension.

Some files may not play or be displayed correctly, depending on sampling rates and bit rates.

Sampling Frequency Rates

MP3	WMA
32kHz ~ 48kHz	32kHz ~ 48kHz

Transfer Bit Rates

MP3	WMA
40kbps~320kbps constant	40kbps~192kbps constant
Variable bit rates	Variable bit rates

Recommended Settings for Burning Discs

MP3

128kbps or higher constant bit rate 44.1kHz or higher sampling frequency

WMA

64kbps or higher constant bit rate 44kHz or higher sampling frequency

DVD

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