DIGIT-ARC read-only archive · snapshot: July 23, 2026

Pen drive read speed !!

14 posts · originally from https://geek.digit.in/community/threads/pen-drive-read-speed.150064/

bubusam13
bubusam13 Original post #1
Dec 15, 2011 at 11:17 PM
:shock: Check this. Is it normal ? I checked it once, twice, thrice. I copied "The Dirty Picture" and several other movies from my Transcend pen drive to my Hard Disk. Look the read speed. It is about 130 MB/s before. :shock:

*i1138.photobucket.com/albums/n536/bubusam13/speed.png :shock:
krishnandu.sarkar
Dec 15, 2011 at 11:38 PM
What about the time??

Taking only few sec??
bubusam13
Dec 16, 2011 at 12:13 AM
It took only a few seconds to get copied.
The speed is not just instantaneous. It lasted till the file get copied.
W
Dec 16, 2011 at 1:58 AM
most probably an anomaly because of some kind of hard disk caching/optimization.such speed is not possible even on usb 3 pen drives(~50MBps).
Zangetsu
Dec 16, 2011 at 10:05 AM
@bubusam13: The Speed is amazing....can try out the same file on TeraCopy?
skeletor
Dec 16, 2011 at 10:07 AM
Speed burst. or may be an error in reporting.

I think file was still being copied after the dialog box reported finished.

Do one thing. Copy it once more to a random location and immediately open WMP and go to the end of the video. Does the video play or not? Only that would confirm about file being copied so quickly.
d6bmg
d6bmg #7
Dec 16, 2011 at 11:33 AM
^^ Speed burst or cached speed, nothing more nothing less.

Is that USB3.0 pen drive?
bubusam13
Dec 16, 2011 at 7:58 PM
I downloaded the dirty picture, sahi dhande galat bande and speedy singh at office and at home copied to my hard disk from my pendrive. All are same. The file can be played on WMP and not corrupted, its USB 2.0 pendrive I bought 2 yrs ago.

@bubusam13: The Speed is amazing....can try out the same file on TeraCopy?

I stopped using tera copy long before when I was using XP because I found it somewhat slow and I think it results in much fragmented drive. May be I am wrong but I don't use it.

@ico... Do one thing. Copy it once more to a random location and immediately open WMP and go to the end of the video. Does the video play or not? Only that would confirm about file being copied so quickly.

It can be played.
Zangetsu
Dec 17, 2011 at 10:55 AM
I downloaded the dirty picture, sahi dhande galat bande and speedy singh at office and at home copied to my hard disk from my pendrive. All are same. The file can be played on WMP and not corrupted, its USB 2.0 pendrive I bought 2 yrs ago.

u are lucky then :wink:
bubusam13
bubusam13 #10
Dec 17, 2011 at 8:43 PM
u are lucky then :wink:

Can't say man. This is the first time I am noticing it in 2 years time. Don't know for how long it will last. ha ha ha
Niilesh
Niilesh #11
Dec 17, 2011 at 8:54 PM
I have experienced the same thing!!
Will post a screenshot tomorrow
But in my case it was 169 MBps(AFAIR) ;)
It was a 4.00 GB single rar file
But the speed only lasted about 15~ sec.
Copied 0.5 Gb in ~3-4 sec!!
clmlbx
clmlbx #12
Dec 17, 2011 at 9:08 PM
Well I too noticed this for once few days ago.. but It was an error as copy process did not completed in given/calculated time..

Even I had transcend Pen drive
Vyom
Vyom #13
Dec 18, 2011 at 12:52 AM
X = Total size of the contents being copied (in MB)
Y = Exact ACTUAL seconds it took to copy (in Sec)
Z = X / Y = Actual speed, in MB per Sec. (Not what a dialog box says).
Niilesh
Niilesh #14
Dec 25, 2011 at 1:21 PM
I almost forgot about this thread
*i.imgur.com/eHSiK.jpg

Though it actually 2-3 min to copy but still for USB 2.0 it is great