He’s right, except the codec in question here is HDV (not DVCPro HD), so the decoding software you would need is this:
http://www.calibratedsoftware.com/QXD.asp
If you’re on a PC, you need the decoder above, or you need to be given the HDV .mov file in another format. Animation codec is a popular choice, as are image sequences.
If you’re on a Mac, it probably means you’ve moved to a machine without Final Cut Pro. Again, the decoder above will do the job. However, it’s technically possible to copy codecs/plugins from one Mac to another… but this (probably) violates various license/terms of use agreements.