MD internal checksum test failed

[SMHRambo]

OSCR firmware version

15.4

OSCR hardware version

HW3

Attach OSCR_LOG.txt file here

OSCR HW3 V15.4

[+] Mega Drive/Genesis

[+] Game Cartridge

Cart Info

Name: QUACKSHOTSTARRINGDONA
Size: 10 MBit
ChkS: A4B3
Sram: None

[+] Read ROM

Saving to MD/ROM/QUACKSHOTSTARRINGDONA/579/...
[*******************]
Internal checksum...Error
CB26

CRC32... A5C946B3 -> QuackShot Starring Donald Duck ~ QuackShot - I Love Donald Duck - Guruzia Ou no Hihou (World) (

OSCR HW3 V15.4

[+] Mega Drive/Genesis

[+] Game Cartridge

Cart Info

Name: QUACKSHOTSTARRINGDONA
Size: 10 MBit
ChkS: A4B3
Sram: None

[+] Read ROM

Saving to MD/ROM/QUACKSHOTSTARRINGDONA/580/...
[*******************]
Internal checksum...Error
CB26

CRC32... A5C946B3 -> QuackShot Starring Donald Duck ~ QuackShot - I Love Donald Duck - Guruzia Ou no Hihou (World) (

...

OSCR HW3 V15.4

[+] Mega Drive/Genesis

[+] Game Cartridge

Cart Info

Name: THEFLINTSTONES
bramCheck: 0000
Size: 4 MBit
ChkS: CD80
Sram: None

[+] Read ROM

Saving to MD/ROM/THEFLINTSTONES/586/...
[*******************]
Internal checksum...Error
1E09

CRC32... 21845D61 -> Flintstones, The (Europe) (Taito).md

OSCR HW3 V15.4

[+] Mega Drive/Genesis

[+] Game Cartridge

Cart Info

Name: THEFLINTSTONES
bramCheck: 0000
Size: 4 MBit
ChkS: CD80
Sram: None

[+] Read ROM

Saving to MD/ROM/THEFLINTSTONES/587/...
[*******************]
Internal checksum...Error
1E09

CRC32... 21845D61 -> Flintstones, The (Europe) (Taito).md

System used

Sega Mega Drive/Genesis

Cartridge pins freshly cleaned?

Yes

Describe the issue.

I have a two Sega Mega Drive games where the internal checksum test fails, but they dump cleanly.
A check with Hasher-JS or romtools.io also confirms a clean dump.