Are you sure the card is class 2? I think that's not possible. The camera of Neo V is 8 MP and can record the video in 720p quality. But, IMO, a card of class 2 just cannot handle the speed requirement of writing 720p quality video file onto it.
If you are not able to find out the class of your card, then you can use the app called SD Tools , to find out the writing speed and hence the class of the card.
Sent from my LG-P500 using Tapatalk 2 Beta-2
SE phones come with a Class 2 card but they run at Class 4 speeds (4mb/s)
plenty for 720p videos.
You need higher for 1080p videos in dual core phones.
As for OPs query.
Just get any Sandisk or Transcend 16GB card, min Class 4. Higher classes don't matter unless you transfer files a lot from your PC.
I have a Class 10 Verbatim microSD card. Not much difference since read speeds for all cards are the same and record vary a lot.
*www.thinkdigit.com/forum/mobiles-tablets/149496-post-your-sd-tools-results.html
^ Get a class 10 card then. No brainer. The Transcend ones are pretty reliable. I was a little biased before but now found them to be as reliable as Sandisk.
Oops... looks like I got a little confused. Yes, Neo V has a 5 mp cam.
Btw, @shubh.s: You had to leave a 500Mb folder overnight to get copied! There are only two possibilities. You were using a USB 1.0 port. Or, that there were many smaller files, rather than a few big size files.
Anyway, Class 10 card would be expensive and over your budget IMO. But you can try a class 6 card.
Btw @Sarath: If even class 4 card is plenty to save a 720p video, then don't you think, Class 10 is an overkill!
I received this card today. Its not actually the full size SDHC card as listed but its a microsSD+Adapter package. Though the combination does the same job as full length SDHC card but KOOVS should list it as it is. This is my first comment in koovs, so I am not sure whether they have dareness like flipkart to accept/publish the negative comment.