I'm a photography tutor and also an internal assessor, so I can give you some first hand advice on what you need to send and the best way to present it.
These are the new assessment requirements for level 1 courses - the pdf file can be downloaded here
http://www.oca-student.com/sites/default/files/photo_reqs.pdf
• All five assignments in their original form plus any amendments made in response to the tutor reports
• Tutor reports
• Learning log or url for blog.
And no more!
Now, the format. You were wondering if you should include printed media. The short answer is that, while it is not compulsory, it is advisable that you do so. I would suggest that you print the images that you took for your assignments at least on A5 paper, ideally on A4. Assessors find it easier and more efficient to review physical prints. We can spread them on a table and have an instant overview of the assignment, its strengths and weaknesses. It also denotes the student's interest in showing their work in a professional way - i.e. it shows that they value their own work.
If you decide to send printed media then there are some further considerations:
prints should be of sufficient quality or you will be doing yourself a disservice - mid-weight, semi-gloss paper is ideal. Don't try and print them yourself if you don't have a professional-quality printer. Having them printed by a professional lab should not cost very much.
prints should de adequately labelled on the back
you don't need to protect each one of them in individual plastic sleeves. Assessors will need to take them out of the sleeves anyway.
you can submit them, together with tutor reports and your assignment comments, in a box. Each assignment and its relevant set of images and tutor report can be stored in a single plastic sleeve or folder inside the box.
About CD's...
I would recommend that you only send a CD if you have your learning log as a word document. And in this case I would convert it to a single PDF file and save it on the root directory so that assessors can find it straight away. However, if you opt for an online learning log (blog) then there is no need to send a CD at all, only the link to the blog.
A word about books...
I wouldn't recommend commiting to the time and money that putting together a book requires. Bear in mind that a book is not a photo album, and that a book is not a substitute for a loose set of prints. A book is a visual product in its own right, with very distinct qualities which demand time, skills and a clear conceptual focus. This is something that is more suitable to level 2 courses.
To sum up, your assessment submission would then consist of:
a box with 5 plastic sleeves or folders, each of which contains your assignment comments, A4 prints of the images you took for the assignment, and your tutor report - plus any follow-up work in response of your tutor's comments.
A CD with a single PDF file, your learning log, or a link to your online blog (you can save this on a CD too)
A physical folder with extra research material - e.g. exhibition brochures, magazine articles, etc.. - which cannot be added to an online learning log (unless you scan all the bits which is not a very efficient use of your study time)
I hope this helps
Jose