ISO Loader 0.7.x Beta

[MannyMania]

Hi all, I've just finished my Dreamcast mod adding a CF Reader as slave. It load cdi images from a real 8gb Card just fine. Getting a real 256gb or 512gb CF card is expensive, so I tried a CF to microsd adapter with a 16gb microsd card and it won't boot. The DreamShell boot loader v2.4 screen says:
Checking for G1 ATA devices...
g1_ata_scan: found device with LBA48: 2051786407
936
Checking for SD Card...
It then goes to the DreamShell boot loader v2.4 screen with the Boot from RAM or CD options.

I also tried a 8gb Micro SD card in the CF to microsd adapter. The LBA48 message was different and it didn't work either.

With the real 8GB CF card that works, LBA28 is displayed and it detects the FAT32 partition 0.

Is there a newer bootloader version I can use?
Do I need to use a specific CF to microsd adapter or is it just not compatible with a CF to microsd adapter?

Thanks Guys!!
MM