Computer resolution can be nice but the screens are usually small. I have a 55" screen (140 cm) TV and you can tell the difference between Blu-Ray and DVD. Also, all computers are now sold with Blu-Ray players and often recorders. Essentially, anyone who says "I want to keep DVD" is saying, "I don't have $150 to buy a Blu-Ray player but I do have the money to keep buying new movies", which is really a non-sequitur. After all, your existing DVDs will play on any Blu-Ray player just fine so you don't need to replace what you own (unless you don't like the resolution).