Everything was fine till yesterday. From today morning I've been observing that videos (on my harddisk using kmplayer) aren't playing smoothly.
I suspected that it might be the player problem, so tried playing using other VLC & other players but same problem observed.
I then, suspected that it might be because players are unable to read at the rate required. I used Process Hacker to see the rate at which the process kmplayer.exe is doing IO operations. This rate is hardly going above 80kB/s and by video is getting struck everytime this rate is dropping below 60KB/s.
To confirm I copied the same file to another external Hard disk and when played the same file. File played seamlessly and the IO rate was around 150KB/s and some times even reached a max of 900KB/s.
Suspecting problem with the hard drive. I've used HD Tune to do some Benchmark testing and to my surprise
max speed is 3.3MB/s and average is 3.2MB/s. This was not the case earlier. The speed of copying a file from this disk to another used to be easily more than 10MB/s (I don't remember exact figure).
HD Tune Status report of this disk had one row marked
Status ID Current Worst Threshold Value Description Attention (C7) Interface CRC Error Count 200 200 0 14165 Number of interface communication errors: 14165
I don't know if that is relevant or not.
One more thing is that this disk is 99% full, with 6 partitions made on it. Excepting a single partition on all other partitions the
fragmentation level is less than 10%.
I'm using Western Digital 3.5-inch 1 TB WD Black disk. whose specifications are as follows:
WD Black 1 TB SATA Hard Drives ( WD1002FAEX) Product Specifications Interface SATA 6 Gb/s Performance Specifications Rotational Speed 7,200 RPM (nominal) Buffer Size 64 MB Average Latency 4.20 ms (nominal) Load/unload Cycles 300,000 minimum Transfer Rates Transfer Rate (Buffer To Disk) 126 MB/s (Max) Physical Specifications Formatted Capacity 1,000,204 MB Capacity 1 TB Form Factor 3.5 Inch User Sectors Per Drive 1,953,525,169
What exactly is the problem? How to rectify it?