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Re: Sony DVD player 530P

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Dan g.

In Reply to: Sony DVD player 530P posted by chenlf on April 12, 2001 at 15:02:14:

I think Fish (below) is a bit off the mark. It may work out like copy protection, and it may be part of the manufacturers (esp. Sony, they sell a lot of CD's!) grand sceme, but what it boils down to I think, is that the laser required to read CD-R discs is a different color (frequency) than the one that reads CD's. So, a company saves $3 by only giving you one laser- bingo, you cant play CD-R's.
MY friends Sony DVD player will not play CD-R's either. Some brands will.
DG

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Re: Sony DVD player 530P Fish 16:10:14 04/13/01 (1)
I tried to put some thought into this before responding so here 'goes.
I think your colored laser comment is, althought thought provoking, way off the mark. If the laser for the DVD needs to be a different color, then how can it play audio cd's at all?
My Yamaha plays: standard, consumer purchased, pre-recorded cd's AND computer OR stand alone 'burnt' cd formats but does not have the decoding ability to understand the compression format of MP3's.
My Sony AND 2 DIFFERENT GENERATION Panasonic DVD players DO play Consumer level pre-recorded CD audio format as well as DVD's but REFUSE to recognize audio in any type of 'burnt' format.
So therefoer we BOTH do acknowledge that SOME DVD players will play 'burnt' audio as well as DVD AND standard pre-recorded stuff. If the laser therory WERE true than the clolred laser issue would NOT allow the DVD player to play any audio at all.
IE: IT'S SOFTWARE NOT HARDWARE! And I can't forsee why any manufacturer would not include this 'software' as commonplace unless forced by "regulation or monetary lincesing" issues.
Sorry but I just DON'T buy into that theory, diferent colored laser or not!
Fish
- for CD Players Dan G. 12:16:58 04/17/01 (0)
  Fish
  First, for the sake of clarity let me call the two lasers red (for pre-recorded) and blue (for CD-R). I am not sure if these colors are right, etc...
  
  You say
  "So therefoer we BOTH do acknowledge that SOME DVD players will play 'burnt' audio as well as DVD AND standard pre-recorded stuff."
  You are correct- for these players are equipped with both lasers (blue & red). I am not sure if one of these is also used fro the DVD, or if that is a third, but I would stronly think that the one that works for pre-recorded CD's is the DVD one.
  You also say
  "My Sony AND 2 DIFFERENT GENERATION Panasonic DVD players DO play Consumer level pre-recorded CD audio format as well as DVD's but REFUSE to recognize audio in any type of 'burnt' format."
  Correct again, and makes sense. These players have the one "red" laser that picks up pre-recorded CD's (and potentially DVD's too) but DO NOT have the second blue laser for reading CD-R's.
  A player can have MULTIPLE LASERS. It recognises the disc and uses the appropriate one.
  dg

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