Just a quick note to all modders, especially those who make big update packs, regarding the comparison of compression algorithms.
Single Jersey
Uncompressed: 3.97MB
RAR (best profile): 1.06MB
LZMA (maximum profile): 0.93MB (12% better)
5 Jerseys
Uncompressed: 19.6MB
RAR (best profile, solid): 4.64MB
LZMA (maximum profile, solid): 3.25MB (30% better)
30 Teams, 75 Jerseys
Uncompressed: 294MB
RAR (best profile, solid): 68.5MB
LZMA (maximum profile, solid): 35.8MB (48% better)
So, obvious result, LZMA offers much better compression on those uncompressed IFF files, offering almost half the filesize on a big 30-team jersey update pack. You'll save both your and your end user's bandwidth, by switching to 7-zip, and thus, LZMA.