saved data could not be accessed

HI, every time i download a rom and transferred it to the R4, on trying to load the game, all my DS says is 'the save data could not be accessed'. would really apprec some help as been trying for ages. Many thanks

Did you extract it?Or update your firmware.

Are you putting the actual .nds rom on the MicroSD?If you're not, as forte_amirul said extract the game with winrar.

Guys, would like to say thank you for your replies....... i sorted it out using curly5959's Max Crass Method to patch this rom.many thanks

It's in the Common Issues https://www.romulation.org/forum/index.php?topic=1462.0