1. 
   HDi
   [interactivity] HDi (formerly iHD) is Microsoft`s implementation of the Advanced Content interactivity layer in HD DVD. It is used in the Xbox 360 HD DVD add-on as well as stand-alone HD DVD players. ==Advanced Content== Advanced Content is a specification defined by the DVD forum used for a...
   Found op http://en.wikipedia.org/wiki/HDi_(interactivity)
   
   
2. 
   HDI
   Head to Disk Interference
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   HDI
   High Density Interconnect: High density interconnects (HDI) are defined as substrates or boards with a higher wiring density per unit area than conventional printed circuit boards (PCB). They have finer lines and spaces (<75 µm), smaller vias (<150 µm) and capture pads (<400 µm), a...
   Found op http://www.encyclo.co.uk/local/20846
   
   
4. 
   HDI
   Human Development Index
   Found op http://www-personal.umich.edu/~alandear/glossary/h.html
   
   
5. 
   hdi
   1) Head to disk interference
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/hdi/1
   
   

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