Over the past (more than) ten years when Sony developed Blu-Ray disc digital video player unit in 2000 capable to play 720p to 1080p high definition (HD) content in MPEG-4 AVC or H.264 format or 4K ultra high definition (UHD) content in MPEG-H HEVC format, the device was slowly sold to some high-income consumers in U.S., Japan, and Europe at about hundreds of thousands of units worldwide. Developing countries like Central and South America (Mexico and Brazil), Africa, and Asia (India, Philippines, Indonesia, China, and Vietnam)—where there were independent of using a conventional DVD video player despite of limitations of the unit such as playing SD video content like 480p or 576p—were not able to buy Blu-Ray player due to big, bulky, expensive electronic components and console software resulting to high price at about U.S $ 800 comparable to desktop or laptop PCs. As affordable China-made 720p to 1080p LCD or LED TV display with sizes at 17-inch, 19-inch, and 23-inch costing at U.S $ 180 to U.S $ 220 available in hypermarkets in 2010 until present, and even home satellite DTV (DVB-S2) and digital cable TV (DVB-C) in separate or combined SD and HD format became locally available in the emerging countries, some medium-income households often wished to avail an affordable Blu-Ray video player, with the same quality and performance from the expensive ones.
In my own idea, there were an unusual concept—unminded to discover by most PC experts—to develop a custom built do-it-yourself (DIY) Blu-Ray digital video player unit similar from a current custom-built DIY PC design unit. The concept requires a single BD-ROM/R/RW disc driver; a motherboard with a combined quad-core CPU (central processing unit), high performance GPU (graphics processing unit) with built-in MPEG-2, MPEG-4, H.264, and HEVC video codec, sound driver with Dolby, MP3, PCM, and AAC audio codec, and audio and video outputs; a LED panel indicator; video control buttons on unit; and a Linux OS based digital audio-video player open source software relative to VLC Media Player. (See illustration below.) Instead of steel frame to install these as mentioned, the custom-designed case should be made of heat-resistant, open vent frame, hard plastics.
Building an affordable custom-built Blu-Ray player design would be near-half the cost of custom-built DIY PC, projected at about U.S. $ 360. But if this concept to offer for medium-income households to buy would be promising or not, the only remaining problem to solve further is to give (1) a consent for the developer of consumer electronic companies like Sony that built genuine Blu-Ray video player unit for fair and balanced competition and (2) a further enhancement of developing open-source digital audio and video system based from the recent existing patents of audio and video codecs.