Troy,
Incidentaly, I'm trying to get rid of letterbox black from 4x3 letterboxed project. Could you explain a bit more on the procedure? I'm working with Avid Media Composer. Unfortunately, Avid doesn't seem to do this without softening the image. Or at least as far as I tried. If I resize the image area to fit to 4x3 and de-resize it when I export or in the other application such as DVDstudioPro, it'll soften the image quite a bit. My original is Super16 telecined to Betasp in 1.66:1 letterbox. So I inheritedly have letterbox in the image which I wanna to get rid of for multiple reasons such as DVD export, HD upgrade, etc.
Christopher,
Computer monitor cannot be a reference for color correction. Make sure you have a properly calibrated NTSC standard monitor for that matter. If you don't have one, you should rather watch the waveform than the actual footage. And my computer is Macintosh as well, just in case you're thinking difference btw PC and Mac is the problem. I don't think it's only that.
Also, I think you're confused about the stock number.