Hybrid DVD with 8.1?

You must use Verbatim DVD-R DL, do not use DVD+R DL discs or the POI and other functions will not work. I have made a backup copy of my 7.1 disc and I made many non POI functioning discs before I discovered that there was such a thing as DVD-R DL. It worked perfectly the first time, and therefore, so should your hybrid disc. Reply back with results. Also you must use Verbatim as Toyota drives will not have an easy time reading any other brand. I have a gen 2 system and it works great with verbatim, but is barely functional with other brands. something to do with the coating on the discs.

 

Let me say first that Verbatim is simply the best brand to use. Our units will read no other kind. When using the DVD-R DL the Booktype is automatically set to DVD-ROM, you do not need to do it no matter what burner you are using. You might get a popup message saying that you cannot set a layer threshold on DVD-R DL, don't worry that is obvious as the threshold is already built into the disc.

The DVD+R DL I used before worked okay, but on long trips over 1 hour in duration, the disc would suddenly go unreadable. This was not fun when I was going to Ocean City, Maryland let me tell you! When I got back I researched and tried DVD-R DL, much harder to find, but the results were dramatic. The load time to find directions, route recalculation and general system responsiveness improved incredibly. Also determining the correct route also improved as I was sometimes getting silly directions to get to the simplest addresses too! And further, no more errors. If you are going to use your unit for long distances, I would suggest using DVD-R DL as it a much more readable format for all generations of nav systems and is not relegated to just a specific generation. They are a bit more costly like $2 more, but is that not worth it over potentially losing your POI in the middle of nowhere? All the best and keep me posted? What generation do you have by the way? Just curious. Mine is a generation 3.

 

I think that LOADING.KWI in 7.1 and newer was changed in a way that the "extra" file on the root of the Disc is required. The 4x/5x LOADING.KWI does not include/use that file and in my thinking does not correctly access the region map data files correctly. Why I think this that, is because this file is the only difference I can see from the 4.2 to 7.x as the file structure and names are the same except for this ONE small File???

I sure wish I had access and knowledge on that darn LOADING.KWI there are a few things I would love to change. Anybody know what lang. this is written in ? My guess is asm. for the processor that is used in the NAV ECU??

for note I have a 2004 that is Gen 4

 

Does anyone have the 8.1 DVD? I'm willing to buy it but I want it to have the new I-65 ramps and I-355 extension. If someone would be willing to check for the extension of I-355 between I-80 and I-55 near Joliet, IL I would greatly appreciate it!

Any other ideas on how I could obtain that info?

 

Guys, I need your help.. in final, did anyone copied a Prius navigation DVD with success, and did you find how to do this operation?

I've created also a topic at this address: http://priuschat.com/forums/gen-ii-...ope-map-update-dvd-how-copy-original-dvd.html

Can you please advise me step by step how to copy this DVD?