Question on burning speeds

vbimport

#1

Hi everyone. I just bought a Liteon 32123s and I noticed that I can only burn on the fly at 12x without the buffer under run protection coming on. By reading these forums, I now realize that the dae of my dvd drive (lg drd 6120b) is only 12x and I should be happy that I am even reaching that speed especially coming from a 4x speed burner. I am left with a question though, when I read that people are burning at 32x and 40x and the total time is only in the 2 minute area, are they timing this from on the fly or burning from an image on the hard drive? Thank you.:slight_smile:


#2

never burn on the fly, always use an image

burning from an image will give you higher speeds


#3

They are timed when no bufferunderrun appears.
I myself own a Plex2410A and I can burn at full speed from HD and also on-the-fly at max speed without any bufferunderruns.
A full disc is being burned in 4 minutes and a few secs then.


#4

its true. burning from an image is much faster cause the hdd supplies the data much faster to the writer. it is always advisable to make an image of a doubtful disc (ie a scratched one) cause if the image is burnt, you are assured of a copy. that is not the case if you copy on the fly. i always do this if i make multiple copies of a disc. it also reduces the usage of the original. also while copying on the fly, at high speeds, i notice that the cd rom cannot supply the data fast enough. the buffer underrun technology comes into play here. the laser stops and waits for the buffers to fill. now i dont mean to be paranoid but somehow i dont like it if the laser stops for even 1 time. it makes me feel as if this is not a good copy or that its gonna konk off soon.

speaking of this, just how long can the laser beam wait for the data. is there a set time limit the laser can wait or it can wait indefinately till the data arrives. will it affect the disc in anyway if it waits for a longer time ?? :cool:


#5

Originally posted by vishtaspa

speaking of this, just how long can the laser beam wait for the data. is there a set time limit the laser can wait or it can wait indefinately till the data arrives. will it affect the disc in anyway if it waits for a longer time ?? :cool:

Nope.

The plextors burnproof (powerrec) technology waits and leaves a gap of maximal 10 or 12 microseconds i beleive.

The Nec/Philips burnproof (seamless link) technology waits and leaves a maximum gap of about 4 microseconds.

Dunno about those numbers exactly , but the seamless link is more advanced than the original plextor one. Already past midnight. if i have time tomorrow i’ll look up the numbers.

Could be that the new plextor burners have even less maximum gap.


#6

Originally posted by Wookie
They are timed when no bufferunderrun appears.
I myself own a Plex2410A and I can burn at full speed from HD and also on-the-fly at max speed without any bufferunderruns.
A full disc is being burned in 4 minutes and a few secs then.

About the same as with the Lite-on Ltr-24102B using either nero or clonecd (roughly 20 to 30 seconds less with fireburner 2.xx simply because it writes the lead-in/out much faster than nero or clonecd but,of course, you can’t burn on-the-fly with fireburner).


#7

aaargh !!! there are gaps when the buffer underrun technology is in use !!! is this true. is this true. This is not good… Gotta go get a glass of water …:wink: