-I like the convenience of MP3 (easy to buy singles, goes straight to my computer, etc ...)
-I like CD's because they're physical and "safer" (aka no computer crash).
You can definitely do it ... just don't overdo it! I used to do that a lot ... not so much these days since I got more kits and breaks; can always find the right kick, snare, hat and play with EQ/compression.
Another aspect to consider is duplicate content: search engines hate this. It's definitely happening when you post the same stuff on FB, Myspace, your blog, your own site and other platforms.