Mass convert MP3 to Ogg

[James Gray]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Pupeno wrote:
> On Friday 07 July 2006 04:46, James Gray wrote:
>> [2] Again, not 100% accurate.  You *can* do lossless manipulation of
>> JPEG's and PNG's but not lossless conversion between the two as they use
>> different compression algorithms.
> Isn't PNG's compression algorithm lossless ? I always thought it was.

PNG can use either a lossless or lossy compression - it all depends on
how the programmer decides to implement compression.  Most
implementations of PNG encoding I've seen employ a lossy compression
algorithm as the results are "good enough" with significant benefits for
file size (same rationale as JPEG, and basically every other lossy
encoding).

http://www.libpng.org/pub/png/pngintro.html

Have a read - it's a good high-level overview of what PNG is and isn't,
and how it's implemented. :)

Cheers,

James
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.3 (Darwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFErkk6wBHpdJO7b9ERAm4JAJ49DNnalRLq5/nxO9cUpB7ggL0O0QCdEo3Q
GE1lpcIV9rO0i8exfP5woAY=
=gQyQ
-----END PGP SIGNATURE-----