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Buying 2nd HDTV card - Advice Requested

3990 Views 69 Replies 9 Participants Last post by  Chris White
My Goal: Play one hi-def show while watching another, or, record two hi-def shows at the same time.


Currently, I have an AccessDTV card in a 1 Ghz HTPC. I'm pretty sure it doesn't have enough CPU power to handle a second card, much less decode with software. To have enough power, I'd need another MOBO and CPU. So, my plan is to buy a second HDTV card and install it in separate PC that is on my LAN.


Since the other PC (a 2.8 Ghz HP) has hyperthreading, that rules out a second ADTV card. I'm thinking my two best choices are the MyHD-120 and the FushionHDTV.


As I understand it, dvd playback is disabled on the MyHD when the PC has hyperthreading, but I won't be watching dvds on the 2nd PC so that doesn't matter. The main advantage I see for the MyHD (in my application) is its more sensitive receiver.


Comments? Suggestions?
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Why not just disable hyperthreading?
Jim,


MyHD and AccessDTV work well together because both support file sharing unlike FusionHDTV.
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Why not just disable hyperthreading?
Because I presume (foolishly I suspect) there are some advantages to having it. If the 2nd PC were to be used as an HTPC I would, but it's primarily used for other purposes.



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MyHD and AccessDTV work well together because both support file sharing unlike FusionHDTV.
Thanks for chiming in here Cliff. As I recall, you have a 2nd card operating on a LAN. Let me see if I understand the implications of file sharing. The advantage of the file sharing is that I could, for example, watch a show using the ADTV that's currently being recorded by the MyHD. Conversely, if the Fusion is recording a show, the ADTV couldn't access it until it is complete. Correct?


p.s. Who is Jim? :)
Quote:
Originally posted by Chris White
My Goal: Play one hi-def show while watching another, or, record two hi-def shows at the same time.


Currently, I have an AccessDTV card in a 1 Ghz HTPC. I'm pretty sure it doesn't have enough CPU power to handle a second card, much less decode with software. To have enough power, I'd need another MOBO and CPU. So, my plan is to buy a second HDTV card and install it in separate PC that is on my LAN.
I wouldn't assume that you don't have enough power with that computer, especially if you went with the MyHD card which doesn't use much of a CPU (like your Access card). But even with a Fusion you should be able to record with a Fusion and watch with your Access card. And I don't quite understand Cliff's comments about file sharing, since I thought the Access card would allow you to record and playback a single show at the same time (time-warping), which to me would mean that you could have the Fusion record something else while you recorded and watched something with the Access card. And the Fusion card has the capability of supporting QAM (although somewhat poorly at this time).


Be that as it may, the MyHD card seemingly has much better software than the Fusion card (based on a one day review of the Fusion card). And the MyHD card only loads one or two (non-certified) drivers, while the Fusion has about 5 (non-certified) drivers, which just seems like it's asking for problems (especially since all the devices seemingly share the same interrupt). So assuming the Access card and MyHD card will co-exist in the same system (I thought they didn't, but you might be using two computers) then I'd go with the MyHD card.
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It really depends on what you use it for. I disabled HT because it was causing me a lot of headaches with various apps.
Perhaps I should have started by asking this question:

How much CPU power would I need to have two HDTV cards in my HTPC, setup so that I can record while the other plays, or both record at the same time?

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So assuming the Access card and MyHD card will co-exist in the same system (I thought they didn't, but you might be using two computers) then I'd go with the MyHD card.
My plan is two use two separate computers on a LAN. I'm pretty sure the FusionHDTV card is the ONLY one that will coexist with my AccessDTV card.
I thought the separate computer was what you were planning, but I wasn't sure. I have a 1000 Athlon I just installed a Fusion in, along with a pre-existing MyHD. Playback is a bit jerky when the MyHD is recording, but I wasn't planning on using the Fusion for playback at all (and that's before I knew how flaky the Fusion software was).


I'll try to check what the CPU usage is while the Fusion is recording to give you some idea.


BTW, I'm not that experienced with the Fusion yet (having only used it for a day), but as far as I know there's no way to have it record shows to directories that are named after the show (as the MyHD will do), or even options as to how the files are named. Also, I think the Fusion software may keep your screensaver from working (not positive on that yet). And I'm having trouble getting it to do scheduled recordings, and I've seen others with the identical problem. The MyHD software just seems a lot more flexible/better in little ways like that. It just seems more professional.
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Quote:
Originally posted by Chris White
Because I presume (foolishly I suspect) there are some advantages to having it. If the 2nd PC were to be used as an HTPC I would, but it's primarily used for other purposes.





Thanks for chiming in here Cliff. As I recall, you have a 2nd card operating on a LAN. Let me see if I understand the implications of file sharing. The advantage of the file sharing is that I could, for example, watch a show using the ADTV that's currently being recorded by the MyHD. Conversely, if the Fusion is recording a show, the ADTV couldn't access it until it is complete. Correct?


p.s. Who is Jim? :)
Sorry about calling you Jim! Had the volume turned up loud on "Dark Side of The Moon" SACD. Just checking out my new speakers while multitasking (well maybe not).


Yes because of file sharing you can start recording to a single file on one HDTV card and playback with the other one during the recording. Fusion locks the file being recorded and you must wait until the end to play it back.
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I just checked, and on my 1000 AMD the CPU is under 20% (typically 15) while recording with Fusion and MyHD at the same time.
Thanks Karyk. You're really making me re-think my plans.


My CPU runs 10-20% when recording and 25% (with occasional peaks to 40%) during playback with the AccessDTV card. If recording with the FusionHDTV required roughly 20% CPU usage, then I should be able to playback with the AccessDTV while recording with the FusionHDTV or record with both at the same time. I probably wouldn't ever use the FusionHDTV for playback.


What do you think? Sound feasible?


By the way, I have two hard drives in the HTPC (plus it is networked to other drives), so I could always record to and play back from different drives if that matters.
"If recording with the FusionHDTV required roughly 20% CPU usage, then I should be able to playback with the AccessDTV while recording with the FusionHDTV or record with both at the same time."


You can record with both on the same computer, but can't time shift a Fusion recording with AccessDTV because Fusion locks the file during a recording. I don't think ADTV can read Fusion seq files.
The 20% figure I gave was recording with both MyHD and Fusion at the same time. Fusion alone is about 10%.


I recorded to the same drive at the same time without incident.


I'm still working through the issues on the Fusion card. I've been given a solution to one problem that I haven't tried, but there still seems to be the problem of the screensaver not working with the Fusion app. That's not really important to me, for I seldom keep the TV on, but it might be important to you.


I guess you'd need to balance having everything all in one PC (Fusion) against being able to file share something while recording it (MyHD). I thought the Access card could "time warp" while recording, and if so, that would reduce the file sharing benefits of the MyHD card.


Do keep in mind that my experience with the Fusion card is only 2 days. That's hardly enough time to recommend it. I can recommend the MyHD card, but that's mainly because I know the software is fairly solid and there are benefits to being hardware based (which is redundant in your case unless the second computer will also be hooked up to a set).
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Quote:
Originally posted by Cliff Watson
I don't think ADTV can read Fusion seq files.
I'm getting around this on the MyHD card by having Fusion record one large file.


Does the Fusion lock keep you from copying the file(s) to another directory?


Cliff, have you tried that batch file someone posted a couple of weeks ago to rename the files?
The inability to time shift a FusionHDTV recording doesn't really bother me Cliff. Looking at my recording schedule, the times I'd like to record two shows at once are almost always at 10pm and I got to bed by then anyway. :) Besides, if I'm recording two shows at once and I want to be able to watch one of them, all I have to do is make sure the AccessDTV is recording the one I want to watch.


Karyk --


If the Fusion is using only 10% of the CPU for recording, then it should work satisfactorily alongside the AccessDTV in my system. I understand you just got the Fusion. My biggest concern is that you're having problems scheduling recordings. That's obviously a MUST HAVE for my intended use.
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Originally posted by Chris White
If the Fusion is using only 10% of the CPU for recording, then it should work satisfactorily alongside the AccessDTV in my system. I understand you just got the Fusion. My biggest concern is that you're having problems scheduling recordings. That's obviously a MUST HAVE for my intended use.
And on that issue, I've posted in another thread. Installing off the CD (which is the same version as the web, but the web has a hotfix I added) fixed that problem. The problem I'm still having is with editing the schedules, but I've been given a solution to try there (increasing resolution--apparently the dialog box is off screen). So far all I've been able to do is add and delete scheduled records. I'll report how the increased resolution works to edit programs. BTW, this is mainly important for padding sporting events and to set something up as a repeating record event.


Also, one thing I have discovered is that I can use IE to schedule off TitanTV for MyHD and Firefox to schedule off TitanTV for Fusion. If Access works off TitanTV too, I'd imagine you could do the same.


Also, one other thing. On the file naming, if it's a scheduled record the file is named after the show. I haven't figured out what happens if you record a second show with the same name prior to deleting the first.
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Thanks again for all your advice Karyk. AcAccessDTV uses a separate guide completely so there would be no conflicts there.


Two minor questions:

Since I plan to use the Fusion for recording only (no playback), would I have to connect the sound card cable? Similarly, can I operate the program with a keyboard only and not connect the remote receiver?
Quote:
Originally posted by Chris White
Thanks again for all your advice Karyk. AcAccessDTV uses a separate guide completely so there would be no conflicts there.


Two minor questions:

Since I plan to use the Fusion for recording only (no playback), would I have to connect the sound card cable? Similarly, can I operate the program with a keyboard only and not connect the remote receiver?
I don't have the cable connected to my sound card for either MyHD or Fusion.


I don't have the remote hooked up at all for Fusion (it is USB based, BTW--the MyHD one I have is serial). As Cliff knows, I try to use the mouse for everything! :D
I'm pretty sure the FusionHDTV card is the ONLY one that will coexist with my AccessDTV card.


Is this statement true?
Quote:
Originally posted by markthemapper
I'm pretty sure the FusionHDTV card is the ONLY one that will coexist with my AccessDTV card.


Is this statement true?
I think so, but again, he's talking about putting a MyHD card in a different computer on a network.


If it wasn't true, or at least if an Access card would have worked with a MyHD card, I wouldn't have bought the Fusion.
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