|
|
Author
|
Topic: My first encounter with a copy-protected CD?
|
Evans A Criswell
Phenomenal Film Handler
Posts: 1579
From: Huntsville, AL, USA
Registered: Mar 2000
|
posted 09-15-2003 08:06 PM
From Collector's Choice Music, I ordered a CD that had two of Mickey Gilley's early albums on it: Room Full of Roses (from 1974) and Gilley Smokin' (from 1976). It's from Audium Records (AUD-CD-8182 with A 70225 printed under it) and has the Audium Records, Koch Records, and Sony Music Custom Marketing Group logos on it. It has the standard "Compact Disc Digital Audio" logo on the inside of the plastic case and nowhere is any kind of copy protection mentioned on the case or in the liner notes. There is nothing to indicate that this isn't a standard CD.
When I attempted to play this CD on my system using my Technics SL-PD8 CD player hooked digitally using Toslink cable to my Yamaha DSP-A1 receiver, the audio had a half-second dropout every 3 to 4 seconds. It didn't matter which track I played -- the same symptom resulted in all parts of all tracks.
I then wondered if the CD would be playable on the computer. I put the disc in and extracted all of the tracks to WAV files, which all played fine using WinAmp. I then decided to burn a CD using these WAV files I extracted. I put them on the CD in the exact same order as on the original CD. I put the burned CD in the Technics SL-PD8 and it played perfectly!
I then tried the original CD in several different players and found that it doesn't work on at least 3 of my players.
Technics SL-PD8 CD Player, Digital TosLink to Yamaha DSP-A1 receiver: did not play properly (had the dropouts)
Technics SL-PD9 CD Player, Analog to Pioneer VSX-D901S receiver: played OK
Toshiba DS-3109 DVD Player, Digital TosLink to Yamaha DSP-A1 receiver: played OK
Denon DVD-900 DVD player, Digital TosLink to Yamaha DSP-A1 receiver: played OK
Pioneer DVD-909 LD/DVD combo, Coaxial Digital to Yamaha DSP-A1 receiver: did not play properly (had the dropouts)
Pioneer CLD-D702 LD player, Coaxial Digital to Yamaha DSP-A1 receiver: played fine
Windows Media Player 8.00.00.4487 CD Playback, digital playback: played fine.
WinAmp 2.80 CD Playback: played fine
In summary, this CD is incompatible with 3 of my players, at least when hooked up to the receiver digitally. The method of digital hookup (coaxial or TosLink) doesn't matter.
The whole point of hooking up the players to my receiver digitally is to avoid the extra conversion to analog going out of the player and back to digital when going into the reciever. The digital decoder in the receiver is better than most CD players anyway, so I prefer to just ship the bitstream there for conversion to analog to get the best fidelity.
Isn't it funny that I had absolutely no problem extracting the CD tracks to WAV files? Isn't that what copy protection is supposed to do -- make the disc uncopyable, rather than making the original disc unplayable on certain CD/DVD players? What gives? What are they thinking? The copied CD played perfectly! This is forcing people to copy the CDs!
| IP: Logged
|
|
|
|
|
|
|
|
|
Leo Enticknap
Film God
Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000
|
posted 09-16-2003 01:51 AM
This is like Macrovision on DVDs and the SCMS system for recordable CDs: you can make it difficult for people whose technical knowledge goes no further than being able to operate basic consumer hardware to copy things, but you can't stop anyone who is determined to. The bottom line is that if it's possible to read the data in order to D/A convert it and then reproduce the resulting audio and/or video, then it's also possible to read the data in order to copy it.
The people who came up with this probably figured that 80% of people who want to copy CDs just don't have the technical skills to use a program such as Nero to extract a CD audio track to a .WAV file, and therefore that stopping 80% is better than stopping no-one.
Besides, there are some circumstances in which copying CDs is just not morally wrong, even if it does contravene the letter of the law. The CD player in my car is an old and knackered one which tends to scratch CDs as you insert or eject them. Not a problem if I can dupe my original onto a 30p blank and use that in the car, but I ain't sticking any originals in there. Given that when I bought the disc in the first place I bought a licence to listen to the music on my own private premises (including in the car), where is the problem in doing that? That's not like I'm making 10 dupes and then giving them out to friends. If the music industry makes a serious attempt to stop me from doing that then they're putting another nail in their own coffin, IMHO. And the classical music industry (from which I buy most of my CDs) is in bad enough shape as it is, so much so that there's increasing speculation about one of the big labels pulling out of that sector. Surely they should be trying to encourage new customers, not alienate existing ones.
| IP: Logged
|
|
|
John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
|
posted 09-16-2003 11:22 AM
Some links regarding the "red book standards" and copy protection:
http://www.wired.com/news/politics/0,1283,50101,00.html
http://www.wired.com/news/politics/0,1283,50886,00.html
http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci503642,00.html
http://www.cdfreaks.com/article/57
http://www.wikipedia.org/wiki/Compact_disc
| IP: Logged
|
|
|
|
|
All times are Central (GMT -6:00)
|
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|