OK, I see the short coming NOW of the Plextor drives. Thanks for the explanation Clint!

Regards
Cal

(in reply to Javeryt)

Hey Clint, have you ever emailed Plextor support with this concern to hear what they have to say?!

quote:

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quote:

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OK, I see the short coming NOW of the Plextor drives. Thanks for the explanation Clint!

Regards
Cal

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Thats fine!

I hope that the Plextor 48X can support *FULLY* writing of regular bit patterns. So do you and many, many others by the sounds of things

Maybe the PX-W4812A will be 'THE' drive to have!



_________________
You get what you pay for...

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Regards
Cal

Hey Clint, I just copied and Pasted your write-up in an email to Plextor Support Team, we'll see what they say, heh!

Regards
Cal

(in reply to Javeryt)

Well, Clint here it is:

Obviously, you don't have the technical KNOW HOW to address this ISSUE! THIS ISSUE NEEDS TO BE ADDRESSED BY THE "DRIVE DEVELOPER!"


----- Original Message -----
From: Plextor Support Team
To: Clarence A Lawson Sr
Sent: Monday, April 29, 2002 12:24 PM
Subject: RE: SD2 Copy


Plextor does nothing to prevent or allow copy protected discs. If you have a beef with a disc that is copy protected, best to contact the mfgr of that disc and complain to them.

Plextor Support Team - Jack
-----Original Message-----
From: Clarence A Lawson Sr [mailto:clawso1@gtcinternet.com]
Sent: Monday, April 29, 2002 1:26 AM
To: Plextor Support
Subject: SD2 Copy


This is what I mean when I say that Plextor's 24x and 40x drives CAN NOT write SD2.51 correctly.



SD2. Eight to Fourteen Modulation is used during encoding, because the 8-bit 'magnetic' byte has to be modulated to a 14-bit 'optical' byte. Technically, this modulation is necessary to allow encoding of two consecutive 1s--which would be impossible with the scheme of pits and lands using 8-bit bytes (1s and 0s). In fact, the changes in reflectivity (as the laser light moves along the sequence of pits and lands) are coded as 1 channel bits. Two consecutive 1s are therefore not possible. Moreover, the 'lands' in between the 1s are represented by 0 channel bits, and the number of 0s represent the run-length. The bits in an optical byte are known as 'channel bits' to avoid confusion, and because they are transferred to the controller board through a specific channel. Furthermore, the fourteen-bit optical byte is provided three additional channel bits, known as merging bits--to eliminate transition conflicts between consecutive optical bytes. During the read process, the interface card demodulates the 14- bit optical code to the 8-bit code used by the computer--and all channel bit-level modulation and processing remain transparent to the user.
Now with that in mind, this is how SD2 works:
A regular bit pattern (such as XYXYXYXYXYXY...) fed into the EFM encoder can cause large values of the digital sum value in case the merging bits cannot reduce this value. The scrambler (something found in every CD-ROM/CD-RW) reduces this risk by converting the bits in byte 12 to 2351 of a Sector in a prediscribed way. The sectors mentioned above try in fact to overload the EFM encoder of the CD-Writer, because *AFTER* passing the scrambler the poor device has to write *REGULAR BIT PATTERNS* - something it really doesn't like. That's how SD2 works. [Plextor recorders *CANNOT* write SD2.51 correctly due to additional weak sectors added by MacroVision, whereas SD2 *PRE* v2.51.021 the Plex 24X & and 40X could cope with those weak sectors.]

Regards
Clarence A. Lawson, Sr.

Regards
Cal

(in reply to Javeryt)

Hey Clint, the thing that gets me is that "it's LEGAL to make a copy of any game or music CD." Since it's LEGAL and the game and music CD producers keep trying to stop the consumer from making a copy, also, the Drive manufacturers are not making it possible for their drives to copy such disk, it seems to me they have a concerted effort going against the LAW and the CONSUMER! It's the consumer who purchases both drives and software! If the consumer were to STOP purchasing both softwares and drives for a WHILE they would do something to improve the "Bottom Line!"

Also, I didn't get any more response from my reply back to Plextor!

Regards
Cal

Edited by - clawso1 on 04/29/2002 15:16:04

(in reply to Javeryt)

Clint,

Stupid question: if CCD4's AWS can really copy all SD2 versions (as I understand from your posts), is this really a big deal ?

I would say: just use CCD4 with AWS and be happy. Or am I missing something ?

(in reply to Javeryt)

Also the Tosh's SDM-1401, 1402. But apparently the newer SDM-1602 works fine with Plex backups...

_________________
You get what you pay for...

(in reply to Javeryt)

There is also quite a BIG, BIG argument on the issue of Toshiba DVD-ROM's playing Plex copies (Toshiba make one of the best DVD-ROM's there is) over at the Freaks. Check it out here: http://forum.cdfreaks.com/showthread.php?s=&threadid=44720&perpage=25&pagenumber=1

It's becomeing a rather personal predicament, *US Vs Sweden* over there if you read though the 3 pages...



_________________
You get what you pay for...

(in reply to Javeryt)

Hey Clint this is exactly what I said to that Tech!


"Obviously, you don't have the technical KNOW HOW to address this ISSUE! THIS ISSUE NEEDS TO BE ADDRESSED BY THE "DRIVE DEVELOPER!"

And you are right, "It shut him down" because he was in over his HEAD!


Regards
Cal

(in reply to Javeryt)

Hey Clint, John will let us know if the Plextor 48x drive will be able to do that, before we purchase it, right John?!

Regards
Cal

Edited by - clawso1 on 05/01/2002 18:53:23

(in reply to Javeryt)