Give me a good CD any time! Especially when they are re-drafted to take proper advantage of web-browsing techniques. The best I've seen are the Pratt and Whitney PW4000 IPCs
I'm an administrator nowadays instead of a REAL engineer and one lunch time a desperate Line Engineer called up our office for advice on an alternative part number for an engine part. Since the Power Plant engineer was out, I bunged the CD in the drive, went to the search page, and typed in the name of the part. The CD took me straight to the right page and even gave a hyper-link to the illustration, with the correct part highlighted. Pretty neat if even an ex-Avionics guy can use it! What a pity the Line didn't have a copy of the CD. [They have now!
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Through difficulties to the cinema