Can you please help??

Hello
This is my first post, so HI!!
I was wondering if anyone could please help me. My Dad has given me his unused Datel Games & Music cartridge. I have downloaded a game onto the micro SD card but when I put it in the cartridge & put in my DS, there is just a ? icon and it will not let me open it. I have looked in the other topics on the forum but can only see advice for R4 cards & not too sure if mine is the same as a R4.
Sorry guys but I am not at all clued up with this type of thing, so bear with me & thank you!

Datel games and music card cannot play commercial games, despite the name. You'll have you buy a different flashcart, unfortunately.

Thank you so much. I'll get a R4 card ordered then! Thought I could save a few £'s!
Thanks again

don't get the R4, it is no longer supported. Get a CycloDS Evolution or an AceKart 2 instead.

Oh right - I'll see if the same guy who gets the R4's can get hold of 1 of those instead - are they more expensive - He charges £35 for the R4

cycloDS cards are more expensive, yes, but they are worth the extra

Thanks again for the advice, it's really appreciated