[ISSUE]: SCUS_971.67 PaRappa the Rapper 2 freezes at black screen before any company logos (ZSO only)

[RoboMWM]

Checks

• I have checked existing OPL issues for duplicates and found none
• I am using either OPL latest stable version, or archived version or OPL beta version

Describe the issue

When using a ZSO file of SCUS-97167, PaRappa the Rapper 2, simply hangs at a black screen, before anything else appears (company logos such as Sony text or game studio logo). Does not respond to modes 1, 2, or 6 enabled, and IGR does not function either.

Using the original iso works as expected over USB.

Console model

SCPH-30001

OPL version / revision

OPL beta 1.2.0 2119

In which device(s) have you experienced this issue?

USB

Context and extra information

ZSO checksum:

Name: PaRappaTheRapper2.zso
Size: 3256559544 bytes : 3105 MiB
CRC32: 132666FC
CRC64: 176F120F9388ACBF
SHA256: 597dd99460696b11e361a0057f12190935bc1048a625bbc145165ffe6836309f
SHA1: 905bf1669949c1e88c350b7f317e726319216aa3
BLAKE2sp: 4d27e7ffdbd59766ba990758f25710e2c9e3255512999dcf98aeecab3848ad7f
XXH64: 7C90E7873F86537B

[telaman]

Hi, i got the same issue as you, i use opl 1.1.0 with usb drive. I tried also EU version of PTR2 (PAL) but it also didnt worked. PaRappa The Rapper 2 works on 0.9.3 version opl (all modes are turned off).

[RoboMWM]

Same as in, it works with iso, but not with zso? Because it works (as expected, with some cutscene stutters) with just the iso on USB for me.

[telaman]

Oh, i didnt saw ZSO sorry. I dont know then.

[10522]

PaRappa the Rapper 2 [SCUS_971.67]:

OPL Beta 1.2.0 2125 SMB ISO - works well
OPL Beta 1.2.0 2125 SMB ZSO - black screen on startup

My PS2 model is SCPH-90008. Compatibility modes do not help. I use redump images and don't use PADEMU, VMC, GSM.