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- Newsgroups: rec.music.cd
- Path: sparky!uunet!noc.near.net!news.cs.brandeis.edu!binah.cc.brandeis.edu!RARDIN
- From: rardin@binah.cc.brandeis.edu (R. Lynn Rardin)
- Subject: Re: MiniDiscs -- What Are They?
- Message-ID: <1992Dec22.152655.16656@news.cs.brandeis.edu>
- Sender: news@news.cs.brandeis.edu (USENET News System)
- Reply-To: rardin@binah.cc.brandeis.edu
- Organization: Brandeis University
- References: <BzB4Lz.LLL@newcastle.ac.uk> <1992Dec22.013311.22956@dgbt.doc.ca>,<28844@oasys.dt.navy.mil>
- Date: Tue, 22 Dec 1992 15:26:55 GMT
- Lines: 32
-
- In article <28844@oasys.dt.navy.mil>, curt@oasys.dt.navy.mil (Curt Welch) writes:
- >> rhoades@ll.mit.edu (Captain Chaos) writes:
- >>I toss out 150 MB as a guess at MD
- >>capacity (CD-ROM=600+ MB, MD has ~1/4 the data a CD has).
- >
- >In rec.audio, ted@dgbt.doc.ca (Ted Grusec) writes:
- >>MD, and DCC both use lossy compression. Therefore, they are TOTALLY
- >>USELESS for computer storage!
- >
- >Ted. You are confused. Think about it. If you still think it won't
- >work, get someone to explain it to you.
- >
- >On the size of the MD, I worked out the likely size last night using
- >numbers from an article in MIX. It came out to about 135 MB - but
- >I had to make some assumptions about how the MD would be used
- >for data storage.
-
- [details of Curt's calculations deleted]
-
- >Curt Welch
-
- A simpler estimation of the data storage capacity of MD yields a similar
- value:
-
- CDs store roughly 600 MB of data, I believe. Since the musical storage
- capacity of a CD and an MD are similar in terms of size and Sony claims
- roughly 5:1 data compression for their ATRAC algorithm, the data storage
- capacity of a MD should be roughly 600 MB / 5 = 120 MB. It's a quick and
- dirty calculation, but the result may not be too far from the true data storage
- capacity of the MD.
-
- -Lynn (rardin@auriga.rose.brandeis.edu)
-