windows 7 external dvd

hello,
At work we use windows 7 enterprise, and I setup some HP Elitebook 850 g1 laptops. They don't have internal dvd players, so we purchased some external usb dvd players. the user is saying that they seem a little slow at times. These are very nice and fast laptops, so I doubt the problem is there. I was wondering if there is a way to increase the buffer size for external usb dvd players, because that to me seems like the most logical bottle neck.
I tried googling this, but haven't not been very successful yet.
Also, I can't copy the contents of the dvd to the hard drive due to copyright issues.
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JeffBeallAsked:
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Mark BillExchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1Commented:
slow doing what? what are they doing with them that could make the user think they are slow.
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JeffBeallAuthor Commented:
just playing dvd's - I'm more interested in finding if there is a way to increase the buffer size. I don't want to get into a debate about what they think is slow. Let's say for instance the dvd is operating correctly, and the play back is average for this manufacturer's specs. It would be like tweaking your car to give it a little more horsepower.
So if it's possible to increase the buffer, I want to try it out and see what happens. If it helps, great! If not, I learn something that might be handy later.
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jcimarronCommented:
JeffBeall--
Are the external USB disk drives and the PC USB ports both USB 3.0?
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Gerwin Jansen, EE MVETopic Advisor Commented:
DVD video discs have a bitrate of about 11 Mbit/s so USB2 should work as well (USB2 has 480 Mbit/s).
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Mark BillExchange, AD, SQL, VMware, HPE, 3PAR, FUD, Anti MS Tekhnet, Pro EE, #1Commented:
I shouldnt laugh but I am, lol.

This is a classic case of idiot(user) error.
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Danny ChildIT ManagerCommented:
If they're using them to play films on, you may want to try a different media player?  Daum Potplayer is my current favourite - handles whatever media files I can throw at it.  VLC is also good - that's what I used before.  Both are free.

https://potplayer.daum.net/
http://www.videolan.org/vlc/index.en_GB.html

I've never come across buffer size being something tweakable for *reading* a DVD, only as something to worry about when burning them.  

Apart from this, it does seem like you need to define what "slow" is - is this for a program install, film start-up time, disk burn, browsing image files, etc?

Then, test the same disks on other PCs/laptops, and perhaps consider other models of external drive?
http://thewirecutter.com/reviews/the-best-external-blu-ray-drive/#test
 - info there on DVD options too.
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JeffBeallAuthor Commented:
"Are the external USB disk drives and the PC USB ports both USB 3.0? "

I ran msinfo32, and it looks like they are all usb 3

"I shouldnt laugh but I am, lol.  This is a classic case of idiot(user) error. "

I'm not following you. If this is directed at me, I'm just trying to learn something, and the comment doesn't help. If it's directed at who I am trying to help, it still doesn't help.

"If they're using them to play films on, you may want to try a different media player?"

Interesting, the only problem is, it's like pulling teeth to try and get approval for new, or different software.

"I've never come across buffer size being something tweakable for *reading* a DVD"

I guess I would agree I, I haven't run into this either.

"Apart from this, it does seem like you need to define what "slow" is - is this for a program install, film start-up time, disk burn, browsing image files, etc?"

She said the sometimes the video pauses, or the video and audio get out of sync.
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Gerwin Jansen, EE MVETopic Advisor Commented:
>> She said the sometimes the video pauses, or the video and audio get out of sync.
It's almost like if the computer is turning the drive off through power management. Can you have a look at the device and check whether Windows is allowed to turn the drive off - disable the setting "Allow the computer to turn off this device to save power".
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Danny ChildIT ManagerCommented:
you could try swapping her drive for a known-good one.  If she can identify a certain disk that shows the fault, try it on other devices.  

She may be seeing the slight pause that occurs when a DVD player changes layers, which would always be at the same point.
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JeffBeallAuthor Commented:
sorry about the slow response, I was distracted by some things. I'm going to get the laptop and dvd player and try some of the suggestions. I hope to get it by tomorrow.
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JeffBeallAuthor Commented:
Thank you for your comments. I apologize for not getting to this question. I have too many things happening at work right now to complete this. So I will have to revisit this another time.
So I felt rude not acknowledging your comments, and I'll close this for now. Like I say, I'll try to get to this later. Thanks again.
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jcimarronCommented:
JeffBeall--
Let us know when you are ready to proceed.
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