[vorbis] Re: Re: fitting lots of music into 10GB with Vorbis

[Graham Mitchell]

> with the vinyl collection. Since i doubt that i'll fit at least 100 
> cds onto 10GB (which at a rough estimate is 10MB per CD average0 i 
> not bothered about exact maths).

Actually, you'll be able to fit much more than 100 full albums on a 10GB hard
drive at quality 3.5.

I have the luxury of access to a computer lab where I can batch-rip-and-encode
24 CDs at the same time, so I've got lots of numbers if you want them.  At
this moment my "jukebox" in my classroom has 1,864 songs on 149 albums, all at
quality 4.  I'm using a little over 8GB of space.

<ASIDE>
Actually, it depends on how you count.

% df /music
Filesystem           1k-blocks      Used Available Use% Mounted on
/dev/hdc1              9649993   8411570    737701  92% /music

    ...but

% find /music -name "*.ogg" -print0 | xargs -0 du -c | grep total
 5080789     total

Counting total space allocated for the files (including "slack") is nearly
8.5GB, whereas summing the file sizes for all 1864 oggs in the HD comes up to
barely over 5GB.  Anyway, it's the bigger number that matters anyway, since
once it reaches 10GB I'm out of space.  Which looks to be at roughly 165 albums.
</ASIDE>

So, 8411570 KB / 149 albums yields right about 55MB per CD.  At quality 4. 
Your mileage may vary.  And I've got a good variety of albums on the jukebox,
including some double albums, so you can expect to get at least 150 albums at
quality 3.5, and maybe closer to 200.

Check out the "jukebox" interface at http://cs.leanderisd.org/voter/  And no,
you can't download any of these.  What you see is merely a front end for a
player in my classroom.  I'm not a big fan of "filesharing" per se.


--
Graham Mitchell
computer science teacher, Leander ISD

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