Big Blue is IBM. Blockbuster is little blue. And the yellow is urine, because Blockbuster is retarded and pissed all over itself. Blockbuster is a terrible company and I'll be glad to see it die.
All of the Blockbusters in Britain are franchises owned by a single company. The same company owns another popular British movie chain but I can't remember the name, so Britain Blockbusters will likely change their names when the American corporation collapses. There are still the rare few states-side franchise stores. Those will likely survive but they'll probably change their franchise to Hollywood Video or the next big competitor. All of the franchise stores in Canada were bought out by the company after taking out a huge mortgage on them. Blockbuster was already driven out of Hong Kong due to piracy and off of the internet by better companies.
Regarding quality control: While I worked at Blockbuster they instituted a set of policies called Project STORE. Essentially you are only supposed to check a case to see if a movie is in it once. You don't check it to make sure as the person is renting the movie because this costs the company precious seconds of time.
You do not check the back of the DVD, as it's cheaper to rent it out to a customer and let him tell you if it works. Then -- and only then -- do you file it for repairs.
Blockbuster pays its managers next to nothing, while at the same time telling us how we were "vital to the process". It's back-handed. The only reason anybody works there is because it's slightly better than McDonalds (although it pays less - even for entry-level customer service positions).
As far as their business model goes: The executives of Blockbuster are, in fact, mentally handicapped. This isn't a joke. They're retarded, I'm 100% certain.
A rental DVD from major distributors (Sony, Warner, Fox, Alliance Atlantis, Paramount) costs $4 plus a percentage of rental profits. So they generally recoup the price of the rental DVD and the case after the first 2 rents. The average large title at my store raked in about $5000 CAD over its first year on the shelf (Hidalgo, for instance, was about $4300 when I left). The average large title had about 100 copies, so that makes $45 in raw profit per DVD. I'm not sure what percentage the studio takes from that though.
When a rental movie no longer rents as well, it's sold as a Previously Viewed Movie. This accounts for a very large portion of Blockbuster's total revenue. The movie itself has been paid for already and the entire sales price is pure profit. That brings up the raw profit per DVD to about $65, assuming someone is gullible enough to buy it when it just hits the shelf. Believe me - it's not worth paying $19.99 for a previously viewed movie, and no, Blockbuster employees don't make sure they work.
So anyway. That's $65 in profit, per DVD, if it comes from a major distributor. Blockbuster pays full price for games and movies from smaller distributors. This is why you almost never see foreign films and why the games selection is usually so crappy. The games section is actually a profit sink for Blockbuster - it's just to get people in the store and thinking about purchasing Previously Rented Product.
So Blockbuster is swimming in profit. They have a business model that works. If I had the kind of industry connections to get that $4/DVD + percentage deal, I'd open a store and make a fortune. Maybe Blockbuster wouldn't be reporting half a billion in losses if the executives didn't get a half-billion dollar bonus this year? Just saying.
Edit: From the above you might get the impression that I just worked in a bad store. I didn't. My store was the #3 Blockbuster in Canada in sales and we consistently recieved praise for following corporate policy.