Are these the same track dif mix?

Hi There,

rather embarrassing as I really should know this. But hey ho!

Can you tell me if these two clips are the same track (groove a&b)and indeed the ID's of all attached please.

Many Thanks

groove 89a is "Djum Djum - Difference"

And 89b is the classic Not Forgotten by Leftfield. Think its the Hard Hands mix.

Made an old(ish) bloke very happy. Thanks a lot guys!