cost: blu-ray's main drawback is cost. prices for players are still generally over $200 and movies cost about $25. while the one-time cost of a player isn't that bad, the cost of building up a new blu-ray library really adds up. at least it's possible to pick and choose which movies you ''''''buy blu,'''''' since every blu-ray player can also play standard dvds.
available titles: another downside is that the number of titles on blu-ray is still much smaller than dvd. there are currently about 970 blu-ray titles available, compared with more than 90,000 (!) on dvd. depending on your taste in movies, you may only find a few movies you actually like available on blu-ray.
load times: when blu-ray first came out, load times were unbearable; it could take more than 3 minutes to load a movie. since then, players have gotten much faster, but they still don't compare with the speed of loading a dvd. while simple blu-ray movies can load in about 20 seconds on a good blu-ray player, movies with complex menus still take close to a minute and a half to get to the actual movie, regardless of the player.
portability: lastly, if you start buying blu-ray movies, you may get frustrated that your new movies won't work in places where you only have a standard dvd player. for example, if your bedroom only has a dvd player, you won't be able to watch the second half of your new blu-ray disc from the comfort of your bed. or if you have a car with a built-in dvd player, your new blu-ray discs won't work there, either.