Xref: utzoo rec.audio:15200 rec.music.cd:4461 gnu.misc.discuss:258 Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!brutus.cs.uiuc.edu!ginosko!uunet!mcsun!sunic!kth!draken!d88-jwa From: d88-jwa@nada.kth.se (Jon W{tte) Newsgroups: rec.audio,rec.music.cd,gnu.misc.discuss Subject: Re: DAT copy protection Message-ID: <1639@draken.nada.kth.se> Date: 13 Sep 89 19:30:01 GMT References: <2013@ifi.uio.no> Reply-To: d88-jwa@nada.kth.se (Jon W{tte) Organization: Royal Institute of Technology, Stockholm, Sweden Lines: 21 In article <2013@ifi.uio.no> ketil@ifi.uio.no (Ketil Kirkerud) writes: >In article yh0a+@andrew.cmu.edu (Yary Richard Phillip Hluchan) writes: >This, of course, will be the largest problem : My main use for DAT >(when I get hold of one...) will be for music recording/mastering : >Not being able to make (digital) copies would seriously cripple >the usefulness of the system : There is always som editing, etc >to be done.. I don't think this will be a problem. From what I've heard, DAT can playback at 32kHz, 44.1kHz and 48kHz, but record at only 32kHz and 48kHz, thus making it impossible to copy directly. Unfortunately, this was easily patched in DAT decks, so the manufacturers considered using a blocking tone (yes, adding a high-pitched note and then trying to filter it in the D/A stage -- fools !) to protect CDs. I'm happy that they seem to have left this approach... The only problem with dubbing should be in 44.1kHz, 48kHz would be no problem, since you can't get there directly from CDs. -- Another good night not to sleep in a eucalyptus tree.