that was/is a good find from minion! but don't worry unduly. though i understand that this creative card could be an outgoing one (to be replaced with a newer model), but i suppose i saw a driver for it from as recent as May '14.
you
could've benefited from a higher-spec card had you been listening to a good source (lossless music, on some very good monitors), whereas here, your priority is mostly movie-watching. prioritywise, your purchase is still good. better you saved some money than splurging it all in these tough times.
remember, an audio-chain (must) start(s) with the source first. then come the various media one-by-one, in their respective order. don't bother too much about the high bit-rate and stuff, unless you are very keen on listening to HQ music, and have above average speakers (esp., 'musical' speakers). anyway, in a hostel environment (with cabins smaller than your room at your home), with your various bugger-mates roaming in-and-out of your cabin, stuff 'vanishing', with all the mess and all, you wouldn't want to turn into a sound/music connoisseur, do you?!
anyway, i guess you can still cancel the order, even if its via CoD. just call the CC and request them. and if not, you can still thoroughly enjoy the card's capabilities. lastly, check the first few pages of the following link, and you might get a whiff of
apparently why (even) some people who dabble in sound & music call the 24-bit thing & other specs flashed on audio-products as 'pointless' and 'hype':
The Audio Board's Frequently Asked Questions, Pre-answered! - Audio - Linus Tech Tips
P.S. - had i noticed your thread earlier, would have suggested you against the DA5000 Pro. i find them more suited to music and gaming than movies. but nevermind. with the correct gear and sound-settings, you won't be disappointed in your movie-viewing experience too.