You will need an analogue to digital converter. You can get a converter online, at computer stores and at audio stores. It will have input jacks for RCA cables from the tape player, a converter box and a USB cable for output.
Read more: How to Record From Reel to Reel to CD | eHow.co.uk http://www.ehow.co.uk/how5082458record-reel-reel-cd.html#ixzz1qXQ29iHy
Or you can have it done professionally - I can't imagine it will be cheap!