[Beta Release] Open PS2 Loader with ZSO support (compressed ISOs)

sion_zaphod

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@Acid_Snake some games absolutely refused to work compressed from SMB I know because I've tried exactly the same compressed ISO's from USB and they work and also the same uncompressed ISO's from SMB and they work too. Is this a problem with the compression or a problem with OPL handling SMB? Is this likely to change? Is there any reason that some games will never be playable in a compressed state (even games on internal HDD).

While this is great for PS2 I do not see this ever being a thing for NGC with Nintendont or Swiss. I've yet to meet a single NKIT iso that didn't just work (with the entire library of games No DUPS fitting in at 650gb). Which is absolutely awesome for archiving purposes. Is there any way to extract a ZSO back to its original state? The last I checked the script didn't work to extract.
 

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@Acid_Snake some games absolutely refused to work compressed from SMB I know because I've tried exactly the same compressed ISO's from USB and they work and also the same uncompressed ISO's from SMB and they work too. Is this a problem with the compression or a problem with OPL handling SMB? Is this likely to change? Is there any reason that some games will never be playable in a compressed state (even games on internal HDD).

While this is great for PS2 I do not see this ever being a thing for NGC with Nintendont or Swiss. I've yet to meet a single NKIT iso that didn't just work (with the entire library of games No DUPS fitting in at 650gb). Which is absolutely awesome for archiving purposes. Is there any way to extract a ZSO back to its original state? The last I checked the script didn't work to extract.
Some games do refuse to work, mainly those that are very sensitive to transfer speeds.
Many of them get fixed with Mode 1, sometimes also Mode 2.
Also for SMB, the best cache size seems to be 12.
 
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@Acid_Snake changing the SMB cache to 12 has no effect on the problem games. For instance you stated the Aggressive Inline works fine from USB apart from the FMV stutter I can confirm it works from USB compressed but exactly the same game black screens from SMB no matter what mode combinations I try.
 

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Is that a ZSO problem or OPL? Meaning is it something that can be fixed?
Most likely an issue with the game. Many games expect data to be read at the specific rate of the DVD speeds they were built for and easily break when it is either too fast or too slow.
ZSO completely changes the way the game data is accessed and the timings, sometimes it's faster sometimes it's slower, but it will never be 100% the same transfer rate as a DVD (some ISOs even have this issue but less).
Can it be fixed? For most games Mode 1 fixes it, which tries to limit the speed at which the game is read to that of DVD at 4X, but this function is way too generic and can be improved by making a better simulation of the access times of a DVD.
 
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Hey guys, since the ZSO code is now in the main OPL repository, I've updated the original post so now the download link is the latest Official OPL Release Page.

From now please do your test reports and downloads from the latest OPL version from the Official OPL Github Repository.
 

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any method to work iso zso on internal hdd.? - I can't transfer the zso to the internal hdd HDLdump works and recognizes the hdd , But it doesn't recognize zso format it only recognizes iso format .. Making false the report that we can use hdldump to transfer these through the cable connected to the network adapter -... I would like to know if anyone out there managed to send the ZSO to the Internal HDD, if you can do that, could you indicate a tutorial with images or videos on how to do this .. ? Thank you very much
 
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sion_zaphod

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any method to work iso zso on internal hdd.? - I can't transfer the zso to the internal hdd HDLdump works and recognizes the hdd , But it doesn't recognize zso format it only recognizes iso format .. Making false the report that we can use hdldump to transfer these through the cable connected to the network adapter -... I would like to know if anyone out there managed to send the ZSO to the Internal HDD, if you can do that, could you indicate a tutorial with images or videos on how to do this .. ? Thank you very much
I totally agree. It's all well and good people saying zso's work fine from HDD but no one has decribed the method of transferring the games. The git is no help either. I've always used HDL Batcher to transfer iso's to my internal drives. Since I connect the drive to my pc through a SATA caddy and transfer hundreds of games in one go. HDL Batcher uses HDL_Dump so it shouldn't be too hard to adapt the batch process but still need instruction.
 
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I totally agree. It's all well and good people saying zso's work fine from HDD but no one has decribed the method of transferring the games. The git is no help either. I've always used HDL Batcher to transfer iso's to my internal drives. Since I connect the drive to my pc through a SATA caddy and transfer hundreds of games in one go. HDL Batcher uses HDL_Dump so it shouldn't be too hard to adapt the batch process but still need instruction.
I've tried everything, but absolutely everywhere on the internet I only see people testing and doing the process over the usb - when they don't have the answers to give me about how that could work on the internal hdd they always direct me to the address of the Github developers .. expressly saying that there is the answer , but I tell you that it was the first place I was there

- i would very much like to find out the secret of how the developer managed to transfer the iso zso to the internal hdd - it would save my life and i would be infinitely grateful to hin . - I left the most relevant part
 
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I totally agree. It's all well and good people saying zso's work fine from HDD but no one has decribed the method of transferring the games. The git is no help either. I've always used HDL Batcher to transfer iso's to my internal drives. Since I connect the drive to my pc through a SATA caddy and transfer hundreds of games in one go. HDL Batcher uses HDL_Dump so it shouldn't be too hard to adapt the batch process but still need instruction.
I added a compression option for zso when transferring to hard drive
there are also other options that you may find useful

NOTE: do not convert your games to .zso first the batch will do it automatically after detecting iso information such as game id and CD or DVD media type

compatible only with windows for the moment

https://github.com/GDX-X/PFS-BatchKit-Manager/
 
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Eu adicionei uma opção de compactação para zso ao transferir para o disco rígido
há também outras opções que você pode achar úteis

NOTA: não converta seus jogos para .zso primeiro, o lote fará isso automaticamente após detectar informações iso, como ID do jogo e tipo de mídia de CD ou DVD

compatível apenas com windows no momento
Success ... Thank you very much - I did everything as shown and what I have now is the reality of a dream in my hands - I would like to thank you for taking your precious time to help us, I use the NFS Most Wanted game as my base because I love this game - and I wanted to know how it would behave after these changes - At first I had a black screen having to restart the console several times.

So I tested the compatibility modes and modes 1 and 2 together worked for me - I also used the GSM 1080i mode and it works wonderfully - The transfer speed is insanely fast 14Mbps... When I selected Iso it did the file conversion on the temp page .. After saving the ZSO on the main drive it automatically starts sending it to the Playstation 2 Internal HDD - Everything was done by USB adaptation - With the ps2 hd connected to the USB - How wonderful friends - I took some pictures - If prohibited, the administrator can remove them -

To the master GDX Member who shared the work and to everyone who actively participates in this work, thank you very much .. I will test everything now and I bring you any news - A big hug to all
 

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Acid_Snake

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Hey guys, the main OPL repository page in github now has exFAT (as well as ZSO) support built-in.
You can find it in this link:
https://github.com/ps2homebrew/Open-PS2-Loader/releases/tag/latest

Remember to always use the latest build from the Official GitHub repo page for the lastest and greatest features that are already stable. Other repos are usually forks with features in their early stages, so be careful with those (unless you want to test and report bugs).
 

sion_zaphod

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From what I read on the git there maybe another OPL update coming soon with improvements to zso cache. @Acid_Snake will this mean greater compatibility for zso and not just from USB?
 

sion_zaphod

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I've identified an issue once you go past 1000 games (on smb at least). More than 1000 games would have been very difficult on HDD and USB devices if not for ZSO support. I have compressed 1173 games on 2tb drive (still have 24gb left to play with), that's including ART/CFG/VMC. I getting issues with OPL not displaying all games/cover art/cfg info, not to mention the compatibility problems with ZSO games. I've reported this on the git. Hopefully these little niggles can be ironed out. If not ZSO format is great archiving purposes.
 

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