Unable to find '1_01d_01.bin' in romset 'dc' - What does this mean?

What does this error message mean? I have dc_bios.bin and dc_flash.bin. I'm not familiar with how to run this emulator.

I searched the Internet and found people saying you have to rename the dc_bios.bin to 1_01d_01.bin and zip it into dc.zip. I tried that, and it didn't work.

What am I suppose to do?

The BIOS needs to be named 1_01d.01.bin (USA version 1.01d IIRC) and must be in dc.zip, along with dc.dat. Simple renaming might not work, as the hashes for the BIOS file must match exactly with what is written in dc.dat.

The simplest solution is to hunt down the proper BIOS files. Even better, dump the BIOs file from your own Dreamcast and use that.

LOL...I renamed the folder and forgot to change the directories the program needed to look in for the proper files...I'm dumb.