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I'm betting you tried crowbarring this, but it had so little impact on anything but the box you didn't bother editing it in. I've found CDs to be very easy to make unreadable (which would be hard to demo in the video without making it longer and having a stylistic break), but difficult to actually destroy. They are, for example, unexpectedly resistant to hammers and flames, and our one shredder that has a "data CD" slot makes a terrible meal of the job and has never quite been the same since we destroyed about 100 old windows server discs (over the course of an afternoon, letting it cool after about every 7 or 8). Plus a committed data recovery guy could probably have fetched most the stuff off even so.
what you need to kill a CD is probably a high speed belt sander and a specialised jig to hold it in place. or just a furnace. or a Quake-style nailgun.
for now... let 'em bounce.
tomorrow should be entertaining, if you slammed it hard enough... tapes make a right mess when broken open, and it's easier than you'd expect. easier than killing a CD, certainly, though up til that point they're more resistant to "surface" damage.