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Audio CD-R(W)

Discussion in 'CD-R(W) Media' started by Praetor, Jun 30, 2003.

  1. Praetor

    Praetor Moderator Staff Member

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    What is it exactly that makes a disc to be read my a discman/stereo? Or is it some chip in the player? I ask because my Discman (a now discontinued, Panasonic SL-SW880 with VMSS) can read CDR discs but cant read CDRW discs. Does it have anything to do with the Multispeed thing about CDRW discs?
     
    Praetor, Jun 30, 2003
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  2. cd-rw.org

    cd-rw.org Active member

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    A CD-RW media has much lower reflectivity than a CD-R disc, so the optics of a player must be CD-RW compliant.
     
    cd-rw.org, Jun 30, 2003
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  3. mhoope02

    mhoope02 Member

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    Probably wont get that much attention in this thread but...

    Would a decent CDR have a lot more reflectivity than a completely sh1te one, or is the difference negligable?

    And does this mean that, in theory, a player that plays CDRW's would play all manner of CDR's, no matter how duff? Because that matches my findings :)
     
    mhoope02, Jul 3, 2003
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  4. cd-rw.org

    cd-rw.org Active member

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    Well, there are (DVD) players that play CD-RW, but do not play CD-R. This is however due that the manufacturer has blocked CD-R usage on purpose, IMHO.

    I am not sure how the RW playback works. My educated guess is that the optics might focus differently when a RW is interested, or use different laser beam power, etc. But CD-Rs are handled as original pressed CDs, so perhaps a player still might stutter with CD-R playback, even though it would be CD-RW compatible.

    Any hardware experts to comment on this?
     
    cd-rw.org, Jul 3, 2003
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  5. mhoope02

    mhoope02 Member

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    That theory is logical, except for the manufacturer's blocking the use of CDR's and then purposely putting circuitry to adjust the laser upon detecting a CDRW :)

    Does anyone really have problems with CDR's in DVD players? I've never known it. 99% of DVD players are MP3 players (of sorts*) as well - MP3's must end up on CDR's, I guess.


    * Mine works well, but some dont do VBR or anything else not STEREO 128KBPS 0WNS YOOO!!!1

    Well, I guess the data rate of an entire film is loads higher than just an Audio Track... <ramble ramble>
     
    mhoope02, Jul 9, 2003
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  6. cd-rw.org

    cd-rw.org Active member

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    Off-topic: Usually CBR 256kbps Stereo is ok for the non-complian MP3/DVD players. If 128kbps REALLY has to be used, then Joint-Stereo should be preferred.
     
    cd-rw.org, Jul 9, 2003
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  7. mhoope02

    mhoope02 Member

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    Even further off topic: Which, with the pop music of nowadays, equates to the same thing. 128kbps per each channel in the stereo option to give 256kbps; or 128kbps spread across both channels with the joint stereo -- means ~the same if the trash is virtually in mono ;)
     
    mhoope02, Jul 10, 2003
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