Search found 20 matches
- Mon Jun 20, 2005 9:04 pm
- Forum: PSP Development
- Topic: stating the obvious
- Replies: 24
- Views: 11370
- Sat Apr 09, 2005 6:44 pm
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
go play a game which plays the music from the disc (like ridge racer) suspend to ram mid game turning the psp back on will start a disc authentification cycle during this cycle the gameplay freezes and the music suspends rip out the battery pack during this cycle open the umd drive. the laser is in ...
- Tue Apr 05, 2005 11:42 pm
- Forum: PSP Development
- Topic: PSP LCD Screen [?]
- Replies: 55
- Views: 33696
- Tue Mar 29, 2005 8:11 pm
- Forum: PSP Development
- Topic: psp update download
- Replies: 1
- Views: 3943
- Sun Mar 27, 2005 10:51 pm
- Forum: PSP Development
- Topic: PSP LCD Screen [?]
- Replies: 55
- Views: 33696
a german professional IT mag (called c't) with a knack for toys tested the response time of the psp and measured that it takes the display 100ms to switch from total black to total white. this is of course very bad, BUT it is less visible than it sounds PLUS if you lower the response time you have t...
- Thu Mar 17, 2005 5:15 am
- Forum: PS2 Development
- Topic: PS2 DVD Drive
- Replies: 7
- Views: 4875
PS2 DVD Drive
is the ps2 dvd rom in any way special. can I plug a different dvd rom if I built a casecon ?
- Thu Feb 24, 2005 4:17 am
- Forum: PSP Development
- Topic: MP4 Video Name
- Replies: 8
- Views: 5947
- Tue Feb 22, 2005 6:31 pm
- Forum: PSP Development
- Topic: Truth about UMD
- Replies: 10
- Views: 8301
If you are worried about battery life you should examine your gaming behaviour first. but let's cut that zynic crap and get to the point, either sony asists in the dev community or it wil get ugly trying to get code running on this thing. It's not just the UMD issues here, there is also major memory...
- Mon Feb 21, 2005 10:54 pm
- Forum: PSP Development
- Topic: Truth about UMD
- Replies: 10
- Views: 8301
any console able to run backups, whatever you might think of them, is wide open for homebrew. I don't want to see the PSP be turned into a Chinese bootleg machine, but the technology and money involved will make it attractive. and somewhere along this line is the entry point for executing unsigned c...
- Mon Feb 21, 2005 7:07 pm
- Forum: PSP Development
- Topic: Truth about UMD
- Replies: 10
- Views: 8301
Truth about UMD
Found out today. UMD can have two layers. data density is equal to DVD, no wonder since same laser wavelenghth is in use. but since an UMD is smaller only 1,8 GB will fit onto it [do your own math] Encryption is 128-Bit-AES-Key. [so for the Memory stick it's probably the same] You can license UMD to...
- Sat Feb 19, 2005 2:42 am
- Forum: PSP Development
- Topic: Discussion On The PBP File Format
- Replies: 25
- Views: 27868
- Sat Feb 19, 2005 1:32 am
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
- Fri Feb 18, 2005 6:49 pm
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
If you took a close look at the picture I posted earlier you would see that there is a difference between the layer which contains the information and the layer that reflects the beam. one is still 100% reflective (but only for the laser wavelength) the other is roughly semi reflective. the layer wh...
- Fri Feb 18, 2005 1:38 am
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
- Fri Feb 18, 2005 1:20 am
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
From human standpiont a dual layer dvd has twice the data desity of a single layer. because we humans see only the disc and the fact that the ammount of data has doubled: X= Ammount of data Y= Space Z= density human Point of View: 2X/Y=2Z mc can only see the disc, the amount of data and thus calcula...
- Fri Feb 18, 2005 12:12 am
- Forum: PSP Development
- Topic: PSP Release
- Replies: 18
- Views: 12330
- Fri Feb 18, 2005 12:08 am
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
Yes, but since the layers occupy the same 2D space, the density of the disc, expressed as bits per cm², becomes doubled. NO, two layers of a disc do not occupie the same space. Pieces of paper do not magically disappear when stacked [If only] just because you can't see them with the eye does not me...
- Thu Feb 17, 2005 9:58 pm
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
- Thu Feb 17, 2005 5:42 pm
- Forum: PSP Development
- Topic: UMD Format
- Replies: 108
- Views: 55325
Measure the total surface of a dvd (only the part where you can write, not the border or the hole in the middle.) you'll find that a DVD stores roughly 42MB per square centimeter. Take the same measurement on a UMD (you know the surface, you know the ammount of data it packs, so hence you calculate ...
- Tue Feb 15, 2005 12:59 am
- Forum: PSP Development
- Topic: Encoding PSP video using non-standard resolutions
- Replies: 104
- Views: 153150
Theory No1. Minimize the ammount by which you have to stretch the picture in each dimension to maximize the sharpness Result: 368x208 for 16:9 Source Additional Perk: no visible distortion since this is almost 16:9 But just to be sure I calculated all variables with exel, so it is not just subjectiv...