I'm pretty sure you're aloud to do that so long as you give credit where it's due. It's recommend you download and save all the MP3s and PDFs available from the groups/Library of Thoth just incase something does happen. It's good to be prepared and have the info available.
Discussion
Gather the data in one pdf file, save it everywhere you can - when in proper format, it won't take more than 50 MB. One's inbox is also a good place to store stuff, especially that now most of them can upload attachments up to 100 MB
HS!