Whatever you do, don't use a Dropbox FREE account to host files.They will suspend activity if you reach 10GB of bandwidth in a day (the cap for paid accounts is 250GB/day.) Maybe this is already well known, but I feel like an idiot!
We were using this method for testing, then as soon as the channel went public it crashed the Dropbox. We had to then scramble to get everything up and running and move to another server, now we have to wait for the update on the Public Channel to roll-out.
Free 24/7 Metal radio via web or smartphone