Activeforever Plextalk PTR2 Digital DAISY Player and Recorder - Manual (Page 91)

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14. Playing an Audio File CD or CF card.
This chapter looks at issues relating to playing Audio File CDs and CF cards.
In this guide, the term "audio files" refers to files that have been created
using a PC or IC recorder. As previously mentioned, PLEXTALK is capable
of recognising and playing audio files which are in any of the following file
formats: Wave, MP3 or Ogg Vorbis.
Before proceeding with this section, you may wish to insert a CD or CF
card containing files in one or more of these formats into PLEXTALK so you
can try out the features as you proceed.
CAUTION: PLEXTALK is only compatible with round CDs. Irregularly
shaped CDs, such as the business card type, will cause a malfunction and
should not be used.
CAUTION: As the CD rotates at a high speed, do not stick any thick items,
like Braille labels, onto the surface of the disc.
NOTE: PLEXTALK cannot be used to record, edit or back up audio files on
CDs or CF cards.
14.1. About audio files.
This section gives you some more technical information about the types
of audio files that can be used with your PLEXTALK. The file types are as
follows:
• MP3 Files - MP3 (short for MPEG1/2 Audio Layer 3) is a standard for
the compression of audio data. It allows compression ratios of
1/10 or even 1/12, with Music CD quality. PLEXTALK supports the
following bit rates: MPEG1 Layer 3 from 32kbps to 320kbps and
MPEG2 Layer 3 from 8kbps to 160kbps. It also supports VBR
(Variable Bit Rate).
NOTE: For VBR, the reporting of the elapsed time and remaining time is
not accurate and should be viewed as an estimate only.
NOTE: PLEXTALK does not support MPEG2.5 Audio Layer 3 file format.