Is this question on topic?
I can't see any reason that would be on topic, no. However, it seems to be asked with the intent of remixing, which is related to audio and video production at least a little.
Probably OK to leave it for now, as it has a good answer.
If there are a proliferation of "where do I download X" questions that would be bad, but one example with a remix slant is not necessarily an issue yet.
I've been struggling with an answer to this, but I tend towards yes. On the one hand, looking for resources for remixing or composing has traditionally been on-topic. But on the other, the question seems to be just one step away from, say "where can I download mp3s?" which would clearly be off-topic here.
The problem I've had is that I can't find a clear distinction. Where is that line exactly? I don't want to start telling people what they can and can't post if I can't even figure it out for myself.
For this question, I decided that editing it so it was more clearly aimed at remixing was the best idea. This is a legitimate question that I've heard several times in recording/remixing contexts so answering it has clearly has value to someone. But whether it's appropriate here is something I'd still like to hear the community's opinion on.