Would this HDD Record at 1080p at 30fps

[Matt]

Hello

I purchased dxtory a few months back and never really used it that much because my studies took over, my pc monitor broke and I didn't have a job so I couldn't purchase a new one until now. I now have a 1920x1080p monitor (my last one was 720p) and I was wondering if my hdd would be able to record in the new resolution. I also need to buy a new hdd to store my recordings so I was looking at the seagate barracuda 2tb 7200rpm sata 6 http://www.amazon.co.uk/dp/B006H32Q3S

I am unsure what speeds that hdd would get so if anyone knows it would be much appreciated.

I saw how you calculate the hdd speed required.

RGB24 YUV24: Width x Height x 3 x fps = bitrate (byte/sec)
YUV420： Width x Height x 3 / 2 x fps = bitrate (byte/sec)
YUV410： Width x Height x 9 / 8 x fps = bitrate (byte/sec)

So It would be

Code Select Expand

1920 x 1080 x 3 x 30 = 186624000b/s = 177.978515625mb/s

Because I am unsure of the speeds that the hdd can achieve I am not sure if it would be fast enough to record at that resolution. I then remembered that dxtory has "Distribution HDD Writing" that reduces the speed that each hdd needs so if I were to buy 2 of them would that feature make them able to record at that resolution.

If nobody knows the answer I will just buy the drives anyway and test for myself.

Thanks In advance.

Matt.

Update. I read http://www.tomshardware.com/charts/hdd-charts-2012/-05-Write-Throughput-Maximum-h2benchw-3.16,Marque_fbrandx42,2903.html and the barracuda 2tb HDD gets a maximum of 203.59mb/s write but the average is only 153.50mb/s. I hope this helps

PC Specs (If it helps)
AMD Phoenom II x6
4gb 1600 ram
2tb 7200 sata iii boot drive
asus 6770 graphics card (so I get over 40fps on almost every game I play)
650w psu


Sorry about really long text.

[Malix]

My recording disk maxes out roughly at 120MB/s, avg. being around 112MB/s and I do 1080p 30fps recording just fine. A codec with lossless/near-lossless compression helps alot.

For instance, Lagarith lossless and Ut Video Codec both compress quite nicely and are pretty fast, if I'd have to take a guess theyd probably take 80-100MB/s pretty much all the time, depending are you using RGB (lossless) or YUV422 (lossy, but not much).

[Matt]

My recording disk maxes out roughly at 120MB/s, avg. being around 112MB/s and I do 1080p 30fps recording just fine. A codec with lossless/near-lossless compression helps alot.

For instance, Lagarith lossless and Ut Video Codec both compress quite nicely and are pretty fast, if I'd have to take a guess theyd probably take 80-100MB/s pretty much all the time, depending are you using RGB (lossless) or YUV422 (lossy, but not much).

Thanks. I will order one of those hdds now.

[LastQuestion]

Just use Lagarith in YV12 and you can cap at 60fps easily. Capturing above YV12 is pointless as youtube won't even process content which is above 4:2:0. For BF3 capturing at 30fps results in bitrates of about 250Mbps, or 30MBps.

[kinjo]

i'm looking for a new 2TB HDD,
can anyone help me to find the best one?

[ClassifyLP]

It's important to know the difference between Byte (B) and Bit (b): 1B = 8b

The formula is for the worst-case, the average-case is (much) lower.

For me, 1080p@30fps YUV420 with MagicYUV 1.2 is usually at around 25-35MB/s (or 200-280Mb/s). Pretty much any current harddrive can handle that.

i'm looking for a new 2TB HDD,
can anyone help me to find the best one?

That depends on your price range. I personally use Western Digital and had bad experiences with Seagate.

[kinjo]

i found this article on google
http://www.deskdecode.com/top-best-2tb-hard-disk-drive-monthly-updated/
and they suggest me to buy Toshiba Desktop DT01ACA200.
how about that?

[simplyfantast]

Capturing above YV12 is pointless as youtube won't even process content which is above 4:2:0.

This is simply not true.  Youtube will accept 4:2:2 and 4:4:4 video, including video encoded to the Apple ProRes codec with 4:4:4 sampling.  I'm pretty sure YouTube's encoder samples it down to 4:2:0 (simply because it doesn't make sense for them to stream 4:4:4 video except for business partners), but I'm not sure how to find out.

Regardless, encoding games in a 4:4:4 or RGB format is fairly important if someone is doing editing work on the video, especially if they're going to do any chroma keying.