CD's are 700mb. Where you get a 750mb from? And you can't add files to CD after data has been copied to it unless it says CD-RW on the disk. If the disc was copied with multisession enabled, just throw it away.

and you Drive may be cooked up thats the only explanation that I can think of. Just take it out, put it in a friend's PC and see if it reads than. If it doesn't, you know its broken. Easy as Pie. One more thing, invest in a 22x DVD-ROM its VERY VERY cheap.

You can add to a CD-R if it has not been finalized. You cannot remove/overwrite anything already written on a CD-R. Only on re-writable (CD-RW)

But if u wanna go 2 more details then surely u can search too nd u wil found dat sum drives donot except CD-R or CD+R 2 read or write ,so u need specification of d drive 2 analyse it.

Wel about cd formats , i think there is no main diference between d two formats which i discused b4 wid u instead of their manufacturers ,i mean if i recal my memory den i supose, probably -R format disc r manufacted by philips nd toshiba nd

nd may be +R disc r 4rm Apple company , probably these wil be not like dat as i memorize ,so better be 2 search more on it too.

There is no CD+R. you mixed them with writeable DVD formats which are -R, +R and -RAM. note: the - in cd is a dash while in dvd it's a minus

U shud not make it a habit of caling circular type disk as a cd while its individual name like cd ,dvd ,blue ray disc e.t.c , last time in 1 of d post ,u replied 2 upgrade d firmware of drive 2 sum user,let me tel u i hav liteon device,i hav downloaded 4rm d link u gave,but wil it help me in my case.

vendors don't really matter on this one. The card's main features that we compare to each other here are the same. The shader processors, pixel shader version, ETC.

ah s**t wrong post.

Wanna make a linux cd of ubunt u 4rm iso nd i used iso img too,d burner u told me but nope.In last mesage of mine,i forgot 2 mention dat i m using maxel company CD 2 write data..

I hav already posted there dat no mater which vendor u hav nd which burner u hav,nd if u see a dim wid no highlighted destination in img-iso burner wen u click on write image 2 disc option. den its bcz writable CD+R r RW disc is not detected by ur device wid no reason so not 2 blame ur burner soft,

Did i use again, i mean CD-R or DVD+R if not detected by liteon device den its unsual wid no reason, i had too dat device once nd could not analyse y dis donot recognise d same cd or dvd d second tym wen u insert it in ur device .but it donot hapen mostly.

No mater whether u upgrade d firmware of liteon as it mostly read or write corectly except exceptional cases ,1 more thing LITEON device suport read compliance r DVD RW or +R wid multisesion, so exceptional case is urs.

exceptional case is urs if device donot read d same previously detected cd or dvd at sum times by liteon which u mentioned here.

Why are you jaffeling so much stuff about disk formats without asking the guy what type of drive he has? At the end the drive determines what disks you can use.

Dvd+R is same as dvd-r can be used to record films and watch them in commercial players. But Dvd+R may only be recorded in a Dvd+R recorder. Same with dvd-r. So look up difference in dvd recorders not blood disk formats.

Oh last thing. That disk you used its not a CD-R80 by any chance? Its made by tdk and the recorder needs to be calibrated on reading and recording speeds to read and write. They are rare expensive but great to counter piracy.