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

[Anthony Frazier]

On 1 Nov 2002 at 21:48, Martin Blackwell wrote:

> I keep my windows programs on two partitions of a sepearate 4GB HD.
> I plan to have a lot more music on the 10GB drive. The stuff in the playlist
> is my personal collection, and about 90% of my sisters. I've still got my
> mothers collection to encode, then I have to start getting more up to date
> music into the collection. So i'll end up needing around 100hours plus in
> the end.

Well, if you're looking at over 100 hours, you're looking at ~160 kb/s to 
fit everything, from Rachid's math.  That would be -q 5.0.

I reran the math, assuming you've got 100 hrs and 10000 MB to play with, 
and came up with ~227 kb/s.  100 hrs @ ~192 kb/s (-q 6.0) will eat up less 
than 8.5 GB, so this might be a good sweet spot, and give you some extra 
room for music.  Please note that the actual bitrates you use will vary.  
I'm not sure how Vorbis behaves at higher quality settings for large 
amounts of data, but I have 150 CDs encoded on my PC at work at -q 3.5 (120 
kb/s nominal), and the collection averages 115 kb/s.

As others have said, encode a few alubms and give them a listen, if you 
can.

> I did do some maths myself a while ago, (probably mis-calculated) and
> figured for just my collection, i'd need about 40GB to have some room to
> spare if the cds were ripped straight into .WAV or .APE (i forget which)
> altho i'm not really bothering with lossless compression till i can afford a
> nice roomy HD.

For 100 hours of .wav, you're looking at needing closer to 60 GB to hold 
the collection.  Piping them through your lossless compressor of choice 
should knock at least 30% off of them, putting you down to 40 GB.  I'm 
yanking these numbers straight out of my ass, but I think they're close.

                                        Pax tecum,
                                            Anthony Frazier

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