thank you for this. after trying and failing with a few others, this recommendation fit the bill.ClipGrab is the best program i've found for such things. It even does the simple things like automatically selects a YouTube video if you've got it open or have the link in your Clipboard.
Nothing happens when I option-double click the URL for the youtube video I'd like to download. This is what the URL looks like: http://o-o.preferred.nuq04s10.v24.l...11818400&key=yt1&ipbits=0&id=37ae873e84010a19Select the URL.
Option-double-click to download the file.