It is never necessary, however when watching a DVD on a HDTV it is helpful. Although not as good as a true HD movie like on an HD-DVD, upscaling DVDs can provide great image quality acceptable even on the highest resolutions like 1080p.
An upscaling DVD player has the ability to basically boost the input signal, giving a better picture.
An "upscaling" DVD player will have an HDMI output, as will a Blu-Ray player and an HD-DVD player (although HD-DVD is a dead format now).
Yes, upscaling DVD/VCR combos are available for purchase.
The Sony DVP-NS710HB is a single disc DVD player.
A Blu ray player will play a standard DVD (as long as the region code is compatible). You should check your Blu ray player for upscaling capability (with upscaling, the Blu ray player will deliver the highest possible quality even from standard DVD's - otherwise you will only get full performance from Blu ray discs).
The DVP can play dual-layer discs, which hold a formatted capacity of 8.5 GB.
Yes, it is much more expensive then buying a seperate dvd and vcr.
The output image from either bothh the dvd and vcr, or just the dvd will be filtered and stretched to look better on a HDTV
The best DVD player depends on the tastes of each person, to my opinion the best can be a DVD player or computer, these electronic devices have this player today is very necessary.
No. DVD players do not have the equipment necessary to record CDs or DVDs.
Yes, the PS3 has built in DVD upscaling to 1080p. However, the quality of the DVD will not be better than Blu-Ray versions, though both will play at 1080p.
It depends on the model, see the manual for more details.