Or use cksum and compare the first 8 hex digits.
Whether you're playing on original hardware or a modern emulator, this version ensures you get the "Complete Unova" experience. It is the base for many popular ROM hacks and is the version required for full compatibility with the feature, which connects your Black 2 save to your original Black/White progress to unlock special flashbacks. Or use cksum and compare the first 8 hex digits