Follow TV Tropes
That is not how backwards compatibility works.
The PS4 uses a slightly modified AMD 64 CPU and Blu-Ray discs, but can also play DVDs.
The PS3 uses a a Cell processor; like the PS4, it runs games off Blu-Ray, and can also play DVDs.
The PS2 uses its own proprietary RISC... thing, and runs games off DVD.
The PS1 uses an off-the-shelf R3000 CPU, and runs games off CD.
The Emotion Engine used in the PS2 has a CPU that implements the MIPS III instructin set, which is fully backwards-compatible with MIPS I used in the R3000. This, coupled with the fact that DVD players are designed to be compatible with CD players, means the PS2 implements PS1 compatibility in hardware, so PS1 games work automatically bar a few edge cases.
Cell is also RISC, but uses the POWER instruction set, which is not fully compatible with MIPS. This means that backwards compatibility has to be done in software - in other words, through an emulator. Early PS3 models did include a full Emotion Engine for PS2 compatibility, but this was removed in later revisions as a cost-saving measure.
And then AMD 64 is CISC, which is fundamentally different to the RISC processors used in previous consoles; it's actually the sort of thing that's in your PC. CISC and RISC instruction sets differ at a very fundamental level, and so again, backwards compatibility has to be achieved in software. This means that if, as is likely, the PS5 also uses x86, it will be able to emulate a PS4 in hardware, but PS3 and earlier will have to be done in software, and writing a PS3 emulator is no small task; not only that, but the PS3 is a decently powerful computer, so it will need a whole lot of RAM and CPU power to operate. (The PS1 and PS2 already have decent first-party emulators, so they can reasonably be ported and should be able to run comfortably on the PS5).
Also, the Rerez guys suspect that the PS5 won't have a DVD player, just Blu-Ray. This would mean that you won't be able to insrt and run a PS>4 disc; rather, it's more likely that those games will be offered as digital downloads.
Also, every commercial Blu-Ray player is capable of playing DVDs. No reason to leave it out unless Sony has a new physical format they’re trying to push (unlikely).
Disks are probably going to be on the way out soon though for physical games. You can't pull data off a disk fast enough to play modern games, which is why you have to install your games on the PS 4's hard drive even if you have a disk.
Cartridges work much better and we'll probably see more of them like the Switch has.
That's why one version of Microsoft's new XBox won't have a disk drive.
True enough. What about the laser?
We'll be back on cassette tapes before you know it.... that or maybe laserdisc has a chance to shine again!
Thats not what the patent is describing. The patent is talking about creating a virtual machine to run the software, not designing the Ps 5 to run the discs natively - you cannot patent that.
You're not running the software on a Ps 5, which can read ps4 discs and software, and run the files on it. You are running it on a Ps 4, the Ps 4 just happens to be digitally recreated inside the Ps 5. They can also digitally recreate a ps3, a ps2 and a psx. Significantly less advanced machines, and thus, far easier to digitally recreate.
@ qwigly That is how I interpreted what I read as well.
Samsung will no longer make blu-ray players for the US.
Will this have consequences for what media the next Playstation will use? It seems like blu-ray is not particularly popular.
Blu-Ray is a Sony product, so probably not.
Another patent shows more evidence the PS5 could have backwards compatibility.
Does anyone else have a sharp drop in connection speeds for other devices when the PS 4 connects to the internet?
Not that I know of, but it might have to do with how much bandwidth your PS 4 is guzzling while updating. If you have a router, you can limit the bandwidth use for it's IP address there.
I would also not let it update by itself if it causes that much trouble.
You ever thought your PS4 library needed more Castle Crashers?
Then you might want to pay close attention to Tuesday...
Has anyone had their console outright lie to them? Mine told me "cannot upload" in regards to a gameplay video I was putting on YouTube after the bar had gotten all the way to the end, but, well, if you check my channel the video's there...
It probably gave an error right after actually uploading the video, but before it could finish the process on your end. Perhaps it was expecting something to happen after the upload that didn't, so it threw an error that it could not upload the video.
Ya this is a common computer problem when two systems are trying to talk to each other over a network. The internet is a lot more unreliable than we software engineers let on, and so if something looks wrong, there’s a whole theory of handling things which at its core says “retry a couple times then give up and tell the user”
In your case what probably happened is something like
PS: hey I’m sending you 3 chunks of video
PS: here’s chunk 1
YT: k, got it
PS: here’s chunk2
YT: k got it
PS: here’s chunk 3
[YT receives but the acknowledgment message disappears into the ether. Time passes]
PS: I said here’s chunk 3
[more time passes]
PS: YT must be dead, rip
This coming Monday at 2pm PST and 5pm EST, PlayStation is releasing on YouTube and Twitch its first episode of what they're calling "State of Play", featuring updates and announcements regarding PS4 and PSVR software.
Sony will no longer sell full game digital codes to retailers starting April 1st; PSN cards and DLC download codes will still be available in retailers.
Sony's answer to Nintendo's Directs is airing right now.
edited: with better quality link
Edited by Hashil on Mar 25th 2019 at 3:09:15 AM
The first State of Play just came and went. What's the verdict?
Kinda passable, but thought it'd be meatier.
Iron Man VR caught me off-guard though.
I completely missed it.
What all got shown?
A Crash Team Racing trailer, a ton of VR games, a pretty decent looking indie(?) title called Concrete Genie that looks like a stop motion movie, and a trailer for Mortal Kombat 11.
Sony chairman Kazuno "Kaz" Hirai is retiring on June 18th
Edited by tclittle on Mar 28th 2019 at 4:10:58 AM
Driveclub, Driveclub VR, and Driveclub Bikes and all DLC will be delisted from the Playstation Store on August 31st and all servers for the games will be shut down March 31st, 2020.
Community Showcase More