Date: Sun, 17 Mar 2002 05:30:15 +0000 From: "Matthew Hanson" <[EMAIL PROTECTED]> Subject: Re: making MP3s to fill my new HDD [LIB]
Good explanation Raymond... thanks. But now because all that raw data on music CDs was easily found and accessed to write to CD-Rs, the music industry is having fits because of how easy it is to rip the tracks and share them on the net. Universal Music is attempting to write a new copy protection system into their new CDs to prevent this raw data from being extracted and copied... but they kinda fell on their face in the process: http://www.techtv.com/screensavers/supergeek/story/0,24330,2391656,00.html More to come I'm sure. (I guess this is still thinly threaded to a Lib topic via figuring out if Fubar can rip from a net connection.. no?) >Date: Sun, 17 Mar 2002 09:58:51 +0800 >From: Raymond <[EMAIL PROTECTED]> >Subject: Re: making MP3s to fill my new HDD [LIB] > >At 07:56 AM 16/03/2002 -0800, you wrote: > >Date: Sat, 16 Mar 2002 22:46:56 +0700 > >From: [EMAIL PROTECTED] > >Subject: Re: making MP3s to fill my new HDD [LIB] > > > >>> Now - if I can just find a way to persuade Win'2K (not 95/98) to *see* > >the > >>> "real" files on the CD... "substitute-CDFS.VXD-substitute" for Win'2K, > >>> anyone? > >> > >> THERE ARE NO REAL FILES ON AN AUDIO CD!!!! > > > >:-) > > > >That was the intended implication behind describing them as "real" files. > >I didn't mean real in a PC/DOS/whatever sense, I meant "real files" as in > >"album tracks". > >"the actual data" then - is that a better description? > >*sigh* OK I think we're having a little trouble understanding EXACTLY what >DAE (digital audio extraction) is. > >There are 2 ways of getting audio data off a CD. The first way is the way >your CD player program does it. It looks at the CD-ROM and identifies the >tracks (perhaps giving them .cda handles so you can see them as well). It >then sends a HARDWARE INSTRUCTION (note, NOT a file system instruction) to >the CD-ROM drive requesting that it go into audio mode and play the desired >track. The CD-ROM drive flips into audio mode and plays the track THROUGH >THE AUDIO CABLE. Thats why if you forget to plug the audio cable from the >CD-ROM drive into the CD in on the sound card you'll be able to control the >drive and read data but you can't play CDs. This is also why when an audio >CD (with an initial bonus data track) is playing, you can't use Explorer to >view the data (at least not without the audio stopping). > >The SECOND way of getting audio data off an audio CD is to use DAE or >Digital Audio Extraction. This is a HARDWARE feature of the drive, some >drives have it some drives (very few nowadays) don't. This is the most >common mode that ripping programs use. The program sends a command to the >CD-ROM drive, putting it in DAE mode then the drive dumps the track as raw >data as fast as it can out the data cable. Note that this is a bit like >reading a raw partition. Also note that this is FILE SYSTEM INDEPENDENT ie. >NO FILES ARE INVOLVED. > >Think about it THIS way. Your hard disk drive can be mapped and you can >extract data off it over the network. Can you access the drive's SMART >status through that mapped drive? Can you defragment the hard drive or >perform a scandisk through the mapped drive? (Ya I know Windows 2000 you >can do these things remotely but that happens through a separate >communications channel ... hell you could even shut the computer down >completely under 2k remotely). Same with DAE for the CD-ROM drive. Without >a special driver to handle the hardware stuff on the computer with the >CD-ROM drive you won't be able to do it. > >If you want more info, visit >http://www.roxio.com/en/interest/music/aboutdae.html (Roxio being the >software company that was spun off from Adaptec). > >*phew*! > > >- Raymond > >--- > > >/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\ >| | "Does fuzzy logic tickle?" | >| ___ | "My HDD has no reverse. How do I backup?" | >| /__/ +-------------------------------------------| >| / \ a y b o t | [EMAIL PROTECTED] | >| | HTTP://www.raybot.net | >| ICQ: 31756092 | Need help? Visit #Windows98 on DALNet! | >\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~/ _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://libretto.basiclink.com/archive - Archives http://www.picante.com/~gtaylor/portable/faq.html - FAQ -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
