EShop or Document Seller

I have a music publishing website that is strictly downloadable PDF and mp3 files. Could you please tell me if I can use video and/or mp3 previews in my product descriptions in either eShop or Document Seller? Also, I like the options capabilities of eShop to use for different levels of licenses for the products, but can you tell me if it's possible to make the options affect the price of the product? Thank you.

Hello Cathy,
Thank you for interesting in our extensions. In the your case, I think EShop is the best choice:

1. If you have trial video or mp3 which are uploaded to youtube or some other media websites, you will be put the links to them in Previews tab in the product details page.
2. EShop supports options with additional price for each option value. You can look at a product at our demo server to see that: eshop.joomdonation.org/cameras/digital-c...non-20d-digital.html

If you have any more questions, please don't hesitate to let us know.
Sincerely, Giang