Registered wrote:now what this all means i'm not going to say this is the 1st time in a very long time i have benchmark something, there are some smart people here that hopefully will confirm i done things right, and even better do further tests to see if the M3 Raw idea is veasable without some kind of container for the many many thousands of files that driverpacks have and can dvd-reader and writers handle this new method in general.
You still do not seem to have grasped my point:
There's no difference between small, single files or a large container file that houses these small files.
If the sector-based access (and that is what matters for the ODD, it does not care about the overlayed file-system) is non-linear, then that means the head will need to shift often, access times will rise, throughput will go down and the driver will make "funny" noises.
Why do you assume files in a contained would all be consecutively arranged while single files aren't?
It's still the same data inside the container, the same sectors to be read and possibly even at the same positions.
As I said before, for random data access, Flash memory is the best because it has no movable parts that would slow down the scattered access process.
Any drive, be it HDD or ODD will suffer greatly from this compared to it's burst data rate.
The only way to overcome this is to know in which order files are being read an to pre-arrange them so that they lay in line.
I am sure this can already be done at ISO level, so there's no need for a container file.
Obviously, even inside a container, there can be fragmentation.
The worse thing about it is that file-system defragmentation cannot even catch it because it's invisible to it (it only sees the big container file).
Think about that for a second.
but personally do fear the workload and extra fatigue added to a dvd-reader could be quite high,
I am sure a PC drive will be designed and tested for such cases of stress.
Compared to an ordinary stand-alone DVD player's drive (which often enough happen to be PC drives anyway), you usually do not only play one large file (the movie) in one given order (from start to end).
The common case is random sector access (same for HDDs), which is why access times play a great role in the performance of different drives and should not be neglected.
in fact i've even seen on many occasions dvd reader's have trouble installing the first steps of windows XP.
That is probably also due to the fact that an unattended medium has to be created by the user on either R or RW media (which are not perfect to read compared to a pressed medium) or the fact that Windows setup is extremely pricky about BIOS settings, RAM timings in particular.
It usually helps setting the BIOS to "Safe Mode" if you encounter file read errors during setup.
You can re-enable your ordinary ("Optimzed") settings once it's installed.
