I agree a new guide should be made for v4.82 CFW (now that hopefully many new dumpers will be able to join with newly CFWed units due to the new ability no longer needing <3.55). It should possible using only latest version Rebug with no 3.55 downgrade or OtherOS. Credits go to NvrBst for this info!!
http://forum.redump.org/topic/12699/ps3 … tructions/
STEP 1
Convert to CFW, newer consoles up to 4.82 OFW can use "PS3Xploit" visit the official website and forums
STEP 2
Install an EID root key dumper and dump the EID root key to a flash drive and put on computer
* EID Root Key Dumper Link: http://store.brewology.com/ahomebrew.php?brewid=228
STEP 3
Use Rebug Toolbox or equivalent to make a NAND (fat PS3)/NOR (newer slim PS3) backup to flash drive (should be a one click button in the menu)
This should come pre-installed with Rebug CFW or downloadable as a standalone pkg from their website to install on other CFW
STEP 4
Extract the EID4 from the NOR or NAND using NvrBst's instructions
Use your hex editor of choice to extract the correct 48 byte string from your NOR or NAND dump. You can find the coordinates (offset) for this at the below wiki link.
* EID4 offsets inside your NOR or NAND dump: http://www.psdevwiki.com/ps3/Flash:Encr … _eEID#EID4
NOR: 0x00303A0 - 0x00303CF
NAND: 0x0081BA0 - 0x0081BCF
STEP 5
Use a hex editor software to concatenate the contents of your extracted EID4 (48 bytes extracted from the relevant location of the NAND or NOR) + EID Root Key to make a 96 bytes file and save this as "3Dump.bin" using NvrBst's instructions
STEP 6
Download the attachment on NvrBst's post in the linked thread called "Getkey-r2-GameOS" and install the contained .pkg on your PS3. This is the linux key dumper recompiled for the PS3's gameOS system. This was the key ingredient we needed.
STEP 7
Put the 3Dump.bin file on a flash drive (Fat32) root directory, insert the disc whose key must be dumped, and run the GetKey program on PS3. This should flash for a few seconds and create some .log files on the flash drive containing the necessary information to be submitted.
STEP 8
Dump the encrypted contents of the PS3 disc using for example IsoBuster on PC with a compatible BD drive, or find another clean way to dump encrypted
STEP 9
Submit, post on forums or PM me if you have any troubles
I'm not a wiki editor but if anyone wants to clean this up and pop it on there or if I should it might help the would-be dumpers 
*I also think BD-Video (including hybrid PS3/BD-Video) needs a guide which I can do if I refresh myself, and also I believe I might have posed my successful steps somewhere in the forums.
Also keep in mind you can generate the 3Dump.bin yourself from almost any CFW version (including 4.65) if you really want to (just the official 3k3y app only works on 3.55). However downgrading and re-upgrading is fine too.
### Generating it Yourself Brief Summary ###
3Dump.bin is just the "EID4(48 bytes)+EID Root Key(48bytes)". EID4 you can get by making a NOR or NAND dump (typically via multiMan), and EID Root Key you need an app.* EID Root Key Dumper Link: http://store.brewology.com/ahomebrew.php?brewid=228
* EID4 offsets inside your NOR or NAND dump: http://www.psdevwiki.com/ps3/Flash:Encr … _eEID#EID4I've generated the 3Dump.bin manually on 4.46, and it matched my 3.55 3Dump.bin. If you havn't already downgraded, and need more detailed instructions I can try to help, just let me know.
EDIT: Also, more so for your own information, if you run the official 3k3y app on a non 3.55, the 3Dump.bin file that is generated is typically just 48bytes (EID4). However, it is probably best to only run the official 3k3y app on 3.55 CFW, especially since you can just get the EID4 from your NAND/NOR dump and who knows what the root key logic does if not run on 3.55 (very unlikely to brick your system, but, isn't the cleanest thing to do).