Just thought I'd add another study idea...many book publishers and now creating there offering in audio format (.mp3). You could call the publisher, give them the ISBN # and see if your book has this format. Oftentimes if it is not normally available, you can fill out a request form and they will make it available. This might not help you this term but if you plan ahead you could place your audio format request now for books you will need next semester. Also, if you have an ADHD diagnosis you could contact your school's disability services department and see what alternatives they have available. If you book is one that has been used in previous semesters, this department might already have it converted.

I struggle focusing while reading also. The Adderall has really helped me with that. I also like listening to podcasts and find I absorb a lot this way. I often listen while exercising. If I keep my body busy...like on a stationary bike or eliptical...then it is easier for my mind to focus.

I don't think hearing a podcast would be enough for me to memorize content for a test, but it would be a nice supplement...a way to preview or review content. Some textbooks offer supplemental material such as podcast commentaries, interviews with the author, etc... Again I would contact the publisher to see what is available. You can also search itunes and other similar sites for supplemental media. If the course you are taking is a general education (liberal arts) kind of course there is likely stuff out there.