I have a 4gb sd card that I formatted on my macbook using disk utility and setting it to ms-dos (fat). I put testmode and mitacap files on it. I put it in the unit and powered it on but it loads like normal. What am I doing wrong? I bought it a few days ago and it says it's ver. 3.010100.

Disk utility may not be formatting the card for FAT32. If you can, reformat the card under Windows for FAT32.

I reformatted it to fat32 on windows and still nothing

I have a 4gb sd card that I formatted on my macbook using disk utility and setting it to ms-dos (fat). I put testmode and mitacap files on it. I put it in the unit and powered it on but it loads like normal. What am I doing wrong? I bought it a few days ago and it says it's ver. 3.010100.

I don't think 4gb able to read, try 2 gb