As for your computer specs I'm guessing you meant 4 gig of memory not 4 meg. 4 meg of memory would be choking all the time. Your processor and 4Gig Ram should be fine as long as the graphics card is descent as well. But there still probably isn't much buffering going on, unless you are using another streaming program to help with the buffer request for the video.
One such program from Microsoft may help you with the buffering/hardware configuration. You may wish to look at this website:http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=17678
WRT Roku, I know the Roku box I used (locked down by the church testing program) has more church channels than typical members can gain access. This is how I was able to test and verify the Priesthood session.
My test Roku box included these channels from which I can select an array of sub-content within:
1) Mormon Channel (available to public)
- New & Popular videos
- Life of Jesus Christ Bible Videos
- Mormon Life videos
- Homefronts, church films, scripture stories
- Mormon Messages
- For Youth: short messages about values and principles
- Radio: Live Mormon channel radio & episodes from past stories
- Broadcasts & Events: Live church broadcasts and archived content from past events
2) BYU TV (available to public)
- BYU TV Live
- Featured episodes
- Top shows
- BYU sports
- Campus events
- Performing Arts
- Talk & News
3) Live Broadcasts (Locked from general public)
- Live Broadcasts & Events
(this is where Priesthood session, CES broadcasts, General Conference, etc. can be viewed)
Note: General Conference can be viewed from the BYU TV or Mormon Channel which are available to general public
- English Version
- English with Sign Language Version
- Spanish Version
- Portuguese Version
- French Version
4) Seminaries & Institutes of Religion (Locked from general public)
* Here the seminary/institute teacher can select video clips, short talks, etc. to supplement their lessons
- 1 Samuel
I'm not sure where the stake training films would be located of if this would be another channel. My tests did not include this content. My last Beta test was during last Sunday's CES broadcast.
Someone in your Ward probably has a Roku box if you want to see what it can do. You may wish to inquire at your next Ward Council meeting / presidency meeting. I like the fact that since most of our buildings have newly designed WIFI we can just plug in the small Roku box (size of a cereal bowl) and plug it into the TV/projector and stream the content using either hardwired Internet or wireless from any room in the building. The church prefers units that can be hardwired or used wireless.
The only problem is that we need to be sure that no non-church content is streamed at church. A locked down box helps control this but a regular member's box would not be locked down and could present a potential problem if they started streaming Netflix content or other videos feeds.
Here is a link to a church description of the Roku box for the general membership:http://lds.org/media-library/accessing-media-roku?lang=eng
Hope this helps...