Thanks for the schooling..

It involves using a special camera that has three color filters in it and uses three strips of film. Each piece of film is exposed through a filter to get a record for the red, green and blue parts of the color spectrum. (Okay, it's cyan, magenta and yellow. I'm trying to simplify, here.)

At the lab those three strips, called "matrices" (plural of "matrix"), are put through a machine that dips them in dye and presses them up against a blank piece of film, called a "receiver stock". After the C-M-Y matrices are printed on the receiver, you have a color print.

Okay, this is WAY simplified but I think it's enough to get you understanding things...

Essentially, if you've ever heard the phrase, "In glorious TECHNICOLOR!!!" That's what they are talking about. Nowadays, Technicolor doesn't actually make "Technicolor", ecxept for the occasional "special" print. Since standard, "tri-pack" color film was invented and perfected there's not as much call for I.B. Tech. It's just soooooo... expensive!
(Quadruple the amount of film to make your first print and then add processing costs.)

The give-away difference between a dye-transfer print and a standard Eastman print is the soundtracks (both the analog and most obvious the SDDS if the print has one) are BLACK AND WHITE (read: dark gray) rather than the blue/green SDDS or the black/magenta analog track of a standard Eastman print.

The advantages of IB?

1. it will NEVER fade. The colors will look the same decades from now!

2. in most cases the colors will be brighter or more vibrant, especially the reds! Also the blacks on most IB prints are VERY black rather than gray or greenish-gray on eastman prints...

Aaron

I'll have to keep my eye our for them in the booth and remember to watch one just to see if *I* can pick up the nuiances...

Most IB prints shipped via TES will have the green label and somewhere on the label will say 'IB DYE', as well as in most cases have a low print number.

With ETS, the label can read 'MATRIX' (not to be confused with the Keanu Reeves movie) or 'IB' or 'DYE XFER' (I have seen all three of these designations on prints of GWTW and Wizard Of Oz). Low print numbers usually as well.

Obviously, you can also check out the Technicolor website:
http://www.technicolor.com/site.html