Doesn't really surprise me that it was the retail version. There might be some minor coding differences for all we know but it is probably the same in most aspects. 

And now for something special:

Shining Force CD Beta
http://www.megaupload.com/?d=0GIOJTYG
The opening titles and stuff seem to have different sound effects. The "Sonic Software Planning" screen doesn't say the name. Instead it plays some odd music while just displaying the logo. I think the opening sequence is different too. It has been a while since I played Shining Force CD final so I cannot remember if the words in the opening were said by a female or a male. I swear it was a female in the final. At any rate, the words are said by a male in the beta. Confirmation please?