this surprise me
 

hello

a friend bring me a cd & when i check it i find its actual size is 700 mb & the cd vendor is acer
now when i check it contents , i find that the size of the cd contents is about 1 GB , frankly i don't believe that !!!!

i copy the contect of the cd on my hard disk , it's true , it contains 2 folder 500 mb for each one

any one can explain me how i can create like this cd , i ask my friend , but he don't know cause the cd is not for him

waiitng ur reply
thank you

clonecd

please search on on oversized tocs or something like that. i guess its a non-obvious search term.

TOC describes tracks on a volume of a CD in the Lead-in area, q-subchannel (cf ftp://ftp.ecma.ch/ecma-st/Ecma-130.pdf $22.3.4).

But you don't need to change the TOC to do what you want. You "only" need to change at least one File Descriptor (cf ftp://ftp.ecma.ch/ecma-st/Ecma-119.pdf, $9).

If you have some skills in C/C++ (maybe it' possible in VB :)), few hours to spent reading Ecma documentations, plus Micro$oft documentation (to do it with/without a driver, in adm mode), it's very simple : use EasyCD to extract the ISO file, use the program you made to modify the ISO file, then burn it (EasyCd again, but the file must be names .iso)

Anyway, it's a good scholar exercice : this kind of protection sheme is useless nowdays (BlindWrite, CloneCD). Of course, it can be the first step. If you're motivated enough, you can go after that to subchannel (p, q->w), or ATIP (remember ecma-130?), then finally try to figure out a maybe "good" protection sheme....

At least, you'll reached Safedisk and Securom, which is not so bad after all - but only if you do it during WE, of course. Otherwise, it doesn't count :)

wait,you mean that all this is kind of a protection?

or you could read the entire image raw, instead of copying the info piecewise, and clone shouldnt have a problem with it.

yes, but the question was "any one can explain me how i can create like this cd ", not "how can I copy it"...
@themis_t : back from holidays? To answer your question, no : oversized TOC (bad name, but...) already exist, but understand fully this one is a good start - to develop your programming skills with a CD and to understand the others

my bad, i guessed what he meant as opposed to taking it as is. he didnt seem like he wanted any kind of response that would make him think ;)

well,i got a little confused with your last post podun....