1. I'm wondering what my custom setting should be for Target DVD size??
another question under preferences File I/O what does the overlapped I/O option do?
and under that option should I have the read 32kb blocks checked? and what does that do?
Also I was wondering if I un-checked the run backup in low priority mode would help get a better burn.??
and would it help to get a better burn if I turned off the burn at lest 30mm (DVD+R/RW high compatibiliy mode option off? seeing how I am using DVD-R's
and under burn setting I was wondering what the book type DVD-ROM option did?
Quote:1. I'm wondering what my custom setting should be for Target DVD size??
I set mine to 4300 (but that's me), I believe Shrink's default is 4464 ... so even 4400 would be ok.
Quote:another question under preferences File I/O what does the overlapped I/O option do?
and under that option should I have the read 32kb blocks checked? and what does that do?
I would leave that unchecked ... I recently read a thread about that. Member was getting errors because it was checked.
I say ... leave everything set to default. Change things later if you have problems
1) If you use good media you can leave it at 4464MB.
If you use very reliable media and burn at their certified speed, you could even bump it to 4474MB.
It sometimes is the difference between a 99.x% compression ratio and "No Compression".
Not much different in terms of output quality, but psychologically more satisfying. :D
2)
Quote:Originally posted by dvdshrink Enable overlapped I/O
DVD Shrink 3.1.0.0 was released with all file/disc access in overlapped I/O mode: this, according to the Microsoft documentation, provides "maximum asynchronous performance".
It turned out to be a bad decision because some virtual DVD drive sofware, DVDRegionFree among them, crashed out when a drive was accessed in this mode. So lots of people couldn't use DVD Shrink anymore.
I fixed this by restoring the original synchronous file access mode in later versions of DVD Shrink, but since the code was there, I left the overlapped I/O as a preference option. To be honest, I never noticed any difference in performance with overlapped I/O enabled or disabled, so perhaps the Microsoft statement was incorrect.
Read 32KB blocks
DVD Shrink normally accesses your drive in chunks of 64KB (32 sectors) at a time, this option sets the chunk size to 32KB (16 sectors), which means more reads, but each read is smaller and faster.
This may make a difference when DVD Shrink is in ASPI mode under Windows98: apparantly some drives prefer 32KB access, or may be unable to deliver 64KB in one read.
I never found a case where it was necessary to enable this option, nor did I notice any performance difference from doing so. Note that DVD Decrypter has the same "transfer length" option in the I/O settings, the default value in this case is 32KB.
In short, neither option is very useful.
I'd suggest you try with "Enable overlapped I/O" checked, and see if it increases rip speed, and leave "Read 32KB blocks" unchecked unless you experience problems.
3) Running DVD Shrink in low-priority mode has no effect on the burn quality.
Its main function is to allow for smoother multi-tasking while DVD Shrink analyses/processes the files.
It is not recommended to multi-task while burning, so whether you use it or not shouldn't matter then.
4) Unless you intend to burn less than 1GB this option has no effect.
If you do burn less than 1GB, I'd recommend you leave it checked, just to diminish risks of incompatibilities.
5) The DVD-ROM option is to be used when burning to DVD+R(W).
It will increase compatibility with some set-top players.
