| View previous topic :: View next topic |
| Author |
Message |
Blackrider
Joined: 29 Mar 2006
Posts: 8
|
 Posted: Wed Dec 13, 2006 10:37 pm Post subject: UMD Speed? |
 |
|
Hi, I wonder if anyone know anything about the speed of the UMD drive in the PSP, what is the actual reading speed and how much penalty is it for a seek?
I know that I could probably figure it out by experimenting but there probably is some people out there that have done that already. |
|
| Back to top |
|
 |
groepaz
Joined: 01 Sep 2005
Posts: 305
|
|
| Back to top |
|
|
Blackrider
Joined: 29 Mar 2006
Posts: 8
|
| Posted: Fri Dec 15, 2006 9:40 am Post subject: |
|
|
It matters to me,
I am working on a commercial game, and I think it would be cool if my publisher let me make a PSP version of it (I like the PSP).
But before I even try to convince them, I need to know if it is at least theoreticaly possible, I have a working port thats run at an MS, but an MS is a lot faster than an UMD. It is a heavily streaming game so, speed of the media is important. |
|
| Back to top |
|
|
onne
Joined: 29 Aug 2006
Posts: 24
|
| Posted: Fri Dec 15, 2006 12:13 pm Post subject: |
|
|
Here(http://gameboy.ign.com/articles/430/430939p1.html) it was stated as follows:
| Quote: | | The system's UMD (Universal Media Disc) optical disk format has also been clarified a bit. A UMD is a 60 millimeter dual layered disk that can store up to 1.8 Gigabytes of data. Transfer rate for the reader unit is 11 Megabits per second, which is twice the transfer rate of a standard DVD system. Sony is also promising the highest level of copy protection for these discs using DiscID and AES encoding technology. |
I'm not quite sure that it is constant speed though. In GameDev mag article about TigerWoods, the EA developers spoke about arranging the data on the disk sequentially to improve loading speed. So I guess in reality there is no other way than to experiment yourself. Or maybe if you ask kindly the TW-psp devs can give you pointers if you can find them. :) |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
