Hi , I am a complete noobie. I have read so much about this product now I am really confused. i want to buy it , an hdmi cable and watch movies. most are all labelled avi.But I know having said that , they are compressed in Divx. My Panasonic hd tv is connected through the 3 cables (composite?) because my hd box did not have an hdmi outlet. This is in the extra room so it did not bother me until I wanted this WD TV player. I wondered if I used hdmi with this WD TV would it have any effect on the regular HD TV run through the component cables? Have had good success with Divx/avi and this product? Thanks in advance. I hope I gave enough info.