[ISSUE][SLUS_213.48 & SLES_541.71]: Yakuza working worst on MX4SIO than usb

holictsubasa commented 2 years ago

Checks

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

Describe the issue

I tested but USA and EUR versions of Yakuza, but in both, the fmv shutters a lot more on MX4Sio Than in usb. this happend with different micro sd, and in fat32 and exfat. Also tested ul format, iso, and zso. All of these works worst on MX4SIO. Also tested other games on the MX4SIO and it doesn't has the same issue, so is not the adapter.

Console model

SCPH-70001

OPL version / revision

OPL v1.2.0-Beta-1940-d58e721

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

MX4SIO

Context and extra information

games affected: SLES-54171 SLUS-21348

FrankyGT commented 1 year ago

I had a similar issue. Yakuza was included on the 64GB sd-card that came with the mx4sio card. The problem seems to be the SD card. I presume the yakuza game files are extremely fragmented. They probably created an image for a 32GB card with lots of fragmentation, or something like that. I found out by copying the yakuza files to my PC, which it could only do at an average of 5MB/sec. Other game files I could copy at 80MB/sec When I copied the files to another SD card all was as fast as possible...

FrankyGT commented 1 year ago

Well, this is quite an interesting issue. Seems it was not the SD card to blame. I did the following :

copy 60GB from SD card to PC. This took almost 3 hours
reformatted SD card to exfat with 16kb secotor size
copied everything back to SD card. This took 45 minutes
copied SD card back to PC. This now took less than 15 min.

But even then the problem persisted, while I was getting 80MB/sec transfer speed to PC. Another SD card on which I tested worked fine, but these cards seemed comparable.

Then today I tried game "Area 51", and the same issue occured on this game too. Then I copied it to my other card, and I also had the issue there!

So it did not seem to be related to the SD card itself.

Then it struck me : on the original SD card I created a VMC for Yakuza, and I didn't on the other SD card. I did for Area 51 on both!

So cause : VMC file. If you disable VMC for both games they work fine!

ps2homebrew / Open-PS2-Loader