Yes. If you order multiple audio transfers and select the MP3 option for all transfers, all MP3s will be put (in different folders) onto one CD (or DVD, up to the maximum capacity of a DVD).
"CVC Productions: Thank you very much for the rapid service and excellent work in restoration of my January 16, 1949 Wilcox-Gay Corporation Coin Recordio-Gram and transcribing it to a current CD version. I cannot begin to tell you how thrilled I was to hear the very clear speaking and singing voice of my then 16 year old but now deceased wife. ..."