UA's DVD is All region so even if you have a single region DVD player (which can likely be "unlocked" in any case) you should be able to play it.
REGION 1 -- USA, Canada REGION 2 -- Japan, Europe, South Africa, Middle East, Greenland REGION 3 -- S.Korea, Taiwan, Hong Kong, Parts of South East Asia REGION 4 -- Australia, New Zealand, Latin America (including Mexico) REGION 5 -- Eastern Europe, Russia, India, Africa REGION 6 -- China REGION 7 -- Reserved for Unspecified Special Use REGION 8 -- Resevered for Cruise Ships, Airlines, etc... REGION 0 or REGION ALL -- Discs are uncoded and can be played Worldwide, however, PAL discs must be played in a PAL-compatible unit and NTSC discs must be played in an NTSC-compatible unit.
Check your DVD player manual or manufacturers web site tech spec. Nearly all modern DVD players can already play an NTSC DVD in "psuedo PAL" and some can even switch to transcode to a PAL TV or true NTSC TV.
The encoded video (MPEG2) on a DVD is stored in digital format, but it's formatted for one of two mutually incompatible television systems: 525/60 (NTSC) or 625/50 (PAL/SECAM). Therefore, there are two kinds of DVD's: NTSC DVD's and PAL DVD's. Some players play only NTSC discs, others play PAL and NTSC discs.
All DVD players sold in PAL countries play both kinds of discs. These multi-standard players partially convert NTSC to a 60-Hz PAL (4.43 NTSC) signal. The player uses the PAL 4.43-MHz color subcarrier encoding format but keeps the 525/60 NTSC scanning rate. Most modern PAL TV's can handle this "Pseudo-PAL" signal. A few multi-standard PAL players output true 3.58 NTSC from NTSC discs, which requires an NTSC TV or a multi-standard TV. Some players have a switch to choose 60-Hz PAL or true NTSC output when playing NTSC discs.
There are a few standards-converting PAL players that convert from NTSC disc to standard PAL output. Proper standards conversion requires expensive hardware to handle scaling, temporal conversion, and object motion analysis and this equipment costs big $$$. Because the quality of conversion in DVD players is poor, using 60-Hz PAL output with a compatible TV provides a better picture. (Sound is not affected by video conversion.)
Most US NTSC players can't play PAL discs. A small number of NTSC players can convert PAL to NTSC. This is why NTSC is normally chosen as the "standard" format for DVD's if there's only 1 version.