so a connection from a toshiba ep30 to an onkyo would only work via the hdmi cable not via optical?.....could i connect my sagem PVR and my panasonic th37px80 to the onkyos via optical for audio (i know it wont be HD) ?
No, the connection from EP30 to the Onkyo via optical will deliver audio from CD or DVD-quality sound. And yes you can connect your PVR and TV to the Onkyo via optical or electrical digital.
think i am getting it now, the optical will work from the palyer to the onkyo but not for the HD audio formats such as True HD/DTS Master ....... they will only work over HDMI.