Ultimate Survival Kit - Mac Handbook
5th Anniversary DVD
Ultra iMac Pak
Super Software Paks
You aren't missing much...
The 5th Anniversary DVD was all the staff videos compiled by Digital Droo and forum members had to order directly. It'll be easier to just extract all the staff videos from previous discs. AFAIK, some MA readers have uploaded some of these videos on YouTube... PrisonGuy videos were always priceless but Nico riding a B/W G3 like a horse was the last best one. (too bad the iRobot-Rover never went anywhere, I'm quite sure the Boot Magazine writers were behind the original iBookgate...)
Survival Kit was mostly freeware "troubleshooting" tools, Tech Tool(basic--Zap PRAM, rebuild desktop & basic hardware test), simple antivirus removers(OS 6-7.6 era), and misc popular "utilities". There was also a HTML guide on the disc which was based on the MacAddict Sept 2000 issue with some snippets of previous upgrade guides(for classic Mac upkeep I think it also referred to a previous issues). AFAIK, this was talked about on the old forums if you had previous issues this disc wasn't anything new.
Ultra iMac Pak was free/demo/trialware geared towards switchers... again like the survival kit it included HTML guides from previous "iMac" feature sections and switcher help.
Super Software Pak was mostly "Best Of"(freeware, trialware and some how-to templates) from the past 6 or 12 months.
My memory is fuzzy as I haven't used a pre-OS X machine or looked at those discs since the Intel transition. They only gave me them when the USPS managed to destroy three issues of discs in a row... I guess it was a consolation prize eh?