(SSI)
The name of the publisher. Other stuff noted in round brackets might be the Chipset required ("(AGA)") or the language of the title ("(De)").
[cr SKR]
cracked by Skid Row. If the crack contains a trainer it's noted in another pair of square brackets ("[t +4 Goonies]").
[a3]
Alternative version no. 3. "Alternative version" means that this disk is slightly different than the very first version of the disk that has been discovered. For completeness' sake, all known variations of a disk are archived - just stick with the first versions added to the database (i.e. those disks without any "[a]" suffix) unless you have a good reason not to do so.
