Rescuing Digital8 Tapes on a 2011 iMac: FireWire Setup & Linux Capture Notes

You don't need active converters or powered hubs. All you need is one of the following:

Sony called FireWire "i.LINK", but underneath the branding, it’s standard IEEE 1394. The Sony D8 camcorder uses a tiny 4-pin port (IEEE 1394a), while the 2011 iMac has a standard 9-pin FireWire 800 port (IEEE 1394b).

Every few years, I end up pulling out the old camcorders to digitize another stack of family tapes before magnetics fade or hardware gives up the ghost. If you've tried doing this on modern hardware recently, you know the struggle: stringing together three different dongles (FireWire to Thunderbolt 2 to Thunderbolt 3/4) just to talk to a 20-year-old camera.  Last time I did this I used a failing 2006 Macbook Pro with the R&B channels failing in the LCD, leaving a very yellow cast to the screen. 

Aince then I've inheritied an old 2011 iMac and it looks like it'll be a a total workhorse for tape capture. It's fast enough to handle high-volume storage easily, but old enough to feature a native FireWire 800 port right on the back panel.

Here is a quick note-to-self on the hardware setup and software workflow, specifically how to use dvgrab on Linux for smooth, hands-off capturing. (since I think the first thing I'm going to do is upgrade that machine to Linux! 

1. The Hardware: Connecting i.LINK to FireWire 800

• The Best Option: A direct 4-pin to 9-pin FireWire 400/800 cable. Plug the 4-pin end into the Sony camcorder and the 9-pin end directly into the back of the iMac. Clean and simple.

• The Backup Option: A standard 4-pin to 6-pin FireWire 400 cable paired with a passive FireWire 400 (6-pin female) to FireWire 800 (9-pin male) adapter plug.  (I had a chain of these around somewhere, but they've gone to the hardware fairy)

2. Software Options (macOS vs. Linux)

If you boot the iMac into its native macOS (High Sierra 10.13 being the official cap), you have a few easy GUI choices:

• iMovie 10 or '11: Works seamlessly out of the box. It will detect the Sony deck, let you control playback from your keyboard, and stream the raw DV footage wrapped in .mov files.  This is what I did on the 2006 Macbook Pro.  It worked, mostly.  

• QuickTime Player X: Open File > New Movie Recording, click the little dropdown arrow next to the record button, select your camcorder for Video/Audio, and set quality to High (this preserves raw native DV without re-encoding).

However, since I should be running Linux on the iMac, the CLI tool dvgrab is unmatched for precision and control.

3. Using dvgrab on Linux (Yes, You Have Remote Deck Control!)

A common misconception when using command-line capture tools is thinking you have to manually press play on the camera side. With dvgrab, you don't!

Because FireWire carries AV/C (Audio/Video Control) signals right alongside the data stream, dvgrab can remotely control the Sony camcorder directly through the cable.

Bash

# Interactive Mode: Control the tape drive right from your terminal
dvgrab -i

# Standard split capture with automatic scene detection & timestamps
dvgrab --autosplit --timestamp my_tape_

When you run dvgrab -i, it drops you into an interactive control shell with easy keyboard shortcuts:

• p — Play

• a — Pause / Still frame

• r — Rewind

• f — Fast Forward

• c — Start recording stream to disk

• q — Stop recording / Quit

Hardware Workaround: If the FireWire control board on an aging camcorder gets flaky and stops responding to AV/C commands, pass the -m flag (dvgrab -m my_tape_). This switches to manual mode: dvgrab will sit quietly waiting for data, allowing you to hit Play on the physical camera buttons whenever you're ready.

Genealogy: A Family of Jarls: The Story of Thore the Silent and His Kin

Late last night I was adding a couple of documents to my mom's record in Family Search as I prepared to head off to her interment service today.  I thought I'd see how far back the 'Dean' family name went.  About a thousand years.  To a family living in the Forest of Dean, Gloucestershire, England.  That's 26 generations back.  Curious, I went back a bit farther to see if these forest dwellers came from anywhere interesting. 

Origin of the phrase Dempster Dumpster

I remember my grandfather talking about Dempster Dumpsters in reference to the garbage dumpster. I'd forgotten about it until I was reading a book about World War 2 today, where the phrase was used. It has an interesting origin! 

Dempster 6-cubic yard garbage container from 1940 source

The word "dumpster" originated as a brand name created by combining the surname of inventor George Roby Dempster with the word "dumpster"—a blend of "dump" and the agent suffix "-ster" (similar to teamster or spinster).

The Evolution of the Dempster Dumpster

 * The Invention (1935): George Dempster, a construction company owner and former mayor of Knoxville, Tennessee, patented the Dempster-Dumpster system. His goal was to reduce manual labor at construction sites by creating detachable steel containers that could be loaded at ground level and mechanically lifted onto a specialized truck chassis.

 * Commercialization & Growth (Late 1930s–1940s): Dempster Brothers, Inc. began mass-producing the system. Throughout the 1940s, the company expanded beyond construction into municipal waste management, industrial sites, and military installations during World War II.

 * The Name: In marketing materials and patent filings during this era, Dempster trademarked the name "Dumpster" for the removable bins and called the overall hauling system the Dempster-Dumpster.

 * Genericization (Post-1950s): Over time, the brand name suffered genericization (similar to Kleenex, Velcro, or Band-Aid). The public began referring to any large outdoor waste container as a "dumpster," regardless of whether Dempster Brothers manufactured it.

Fixed! The Unseen Reason Your Bluetooth Headset Audio is Choppy on a Desktop PC

If you just bought a nice Bluetooth headset (like a pair of Shokz) and paired it to your desktop PC, only to get terrible, stuttering audio, you are probably ready to return it. It starts crackling, cutting out, or just goes completely silent the second you lean back in your chair.

It is easy to blame Windows, outdated drivers, or a defective headset. But if your motherboard has built-in Wi-Fi, the real fix is incredibly simple, and you probably threw the solution back into your motherboard's retail box.

The Onboard Bluetooth Myth

When a motherboard boasts "Onboard Wi-Fi and Bluetooth" (like the GIGABYTE X570S Aorus Elite AX), most people assume the hardware is self-contained. Our phones have Bluetooth without any weird external wires, so why wouldn't a premium PC?

Here is the catch: onboard PC Bluetooth modules do not have internal antennas.

The wireless card hidden under your motherboard's metal shield relies entirely on the gold terminals on the back of your PC to send and receive signals.

 

Why Does It Work a Little Bit Without It?

Without the antenna, your PC's Bluetooth range drops to about a foot. If your computer is sitting on the floor or even on your desk, your body or the metal case will completely block the signal.

This is why the headset pairs fine, but the audio immediately goes to garbage when you actually try to use it.

The golden rule here is that your Wi-Fi antenna is also your Bluetooth antenna. Even if you use a wired Ethernet cable and never touch Wi-Fi, you still have to plug in that antenna to get a usable Bluetooth signal.

The Quick Fix

To fix this, you just need to do three quick things:

1. Find your motherboard box and pull out the external antenna (the GIGABYTE one looks like a little plastic fin with two wires).

2. Screw the two gold connectors into the back of your PC's I/O panel until they are finger-tight.

3. Place the antenna somewhere high with a clear line of sight. Since it has a magnetic base, sticking it on top of your PC case works perfectly.

Once it is plugged in, the audio stutters should disappear completely and you will finally get the range you expected.

Tested working all across the house just like it should! 

Make a Pond at Shawnee Mission Park with a Trailcam?

 Oh hai!  What six months since I posted?

 

So, news first. August 9th helped my daughter to unfsck her vintage Honda Accord.  Catalytic heat shield fell off and was dragging on the highway.  Laid down, jacked the car up a bit reached out and banged the metal off the frame. No immediate issues, eh?

Well a day or two later, shooting pain from the hip to the heel on the left leg.  Sciatica. 

It's now one full month and I've got 500 steps, or 4 minutes standing before I have to pop a squat to reset the nerves.  Gah.

 Well, we can still plan for the future!

This post on X (Twitter for us OG's) shows a guy making a pond in a desolate area of a nature preserve, then filming the animals that come!
 

 

The man made a small puddle in the forest and observed the creatures that came to drink. 🙏👏 pic.twitter.com/ZgZkg7GA4Q

— March (@MarchUnofficial) April 8, 2025

 

SO, Shawnee Mission Park has a large unused area that has limited camping and no maintained trails - an ideal place to put a pond and trail cam!  Comment your suggestions for a good HD trail cam with IR night vision!
 

 

PC troubles

Well, if it’s not one thing it’s another. For the last several weeks, I’ve been battling with the PC shutting off. And doing the research and digging through the blogs and tech decks and so forth, it appears to be a fault with the AMD CPU. I’ve tried changing settings in the bios, tried overclocking it, under clocking it, over volting it, under volting it, turning off idle State, turning on idle State, none of which has made any difference. Yesterday, it restarted seven times while basically idle. What I’m playing a game or editing a video and rendering it stays stable, but while it’s just kind of chilling out it shuts down. That’s unfortunate. It’s making it hard for me to be interested in starting streaming again. To stream,you need a stable machine that’s going to run for 2, 3, 4 hours at a pop without crashing.

Well tonight, I thought I’d try again. It had been stable all day today, so I thought I might be able to get a brief stream in before bed. I managed to get the game up the streaming software loaded and even started the stream and got into the first scene of the game. And then. . .

The cat jumped down off the desk and landed directly on the power button, shutting the computer off completely near minutes after I had started my last ditch attempt to stream. The world is telling me something perhaps not to strain. Or perhaps to get that power covered up. Anyway, will be back to it when we can get back to it. I must say, though, it was frustrating.

Namaste!

How to Split Audio Tracks in OBS to avoid Copyright Music getting in your VOD

 If you're a Twitch streamer, and like to save your VOD's or repost them to Youtube, you know that having copyrighted sounds or music in your replay VOD will get you muted, or even banned from the platform.

Fortunately, OBS has a way to work around that.  You can specifiy in OBS what tracks to send audio to.  Here's a quick explainer on how to split audio sources in OBS and route them to different tracks.

First, Disable Desktop Audio

 

Open the Sources for your Scene, find desktop audio and click the eyeball to disable it.  Or simply delete it.

Why?  Desktop audio plays all sounds from the computer through the stream.  If you have something playing that's copyright, it'll go on the main stream and the VOD, which is what we want to avoid.

Also, if you have both Desktop Audio and an audio source for your game or alert, you'll hear it twice - it's doubled or echoing in the stream. 

 

Second, Capture your Game Audio

 

Call it 'Game Audio Source' or something.  Select the game you are playing from the next window, just like you would do for the Game Capture source. Yes, you will have to update this each time you play a different game.  OR create one for every game you play.  Whatever works for you.

 

 Third, Create an Audio Source for your Copyright Sounds and Music

For instance, you want to use StreamElements with some sounds you ripped from a CD or DVD for alerts.  All copyrighted.  So double click on the StreamElements source (or whatever browser source you're using that may send copyright sound out) and check the  'Control Audio in OBS' box.  That creates a new item in the sound mixer. 

 

Fourth, Assign Tracks. 

Fourth-point-one: Ensure Twitch is using a VOD track

 

Open File-Settings.  Go to the Output  tab.  Choose 'Advanced' from the dropdown at the top. Choose the Streaming tab.  Look for the Twitch VOD line  Check that box.  And put a dot in radio button #2.  That makes all audio from Track 2 go to the VOD.  How do we do that?

Four-point-two: Really assign tracks now.

 

Hopefully you can zoom in on that one.  Here's a closer view of the setting. 

 

 

There's two things going on here.  First, the third track is my StreamElements browser source.  I'd not be able to hear it announce a follower or raid or bits, since it's playing in the *viewers* browser unless I set it to 'Monitor and output'.  All of the other sources I have set to Monitor Off, since they are playing on my local computer and I already hear them.

Second, you see the tracks.  Everything is getting played on track 1.  That's the Stream Track.  But the last two sources (StreamElements and the music program Tidal) do not have Track 2 checked.  That's the VOD track.  So, after your stream when you publish the stream to your VOD, Track 2 will NOT be present, and none of the copyright audio will be present, keeping the mute and strike boogyman away.

 

Fifth - Recording Locally

If you're recording while streaming to a local file, just jump over to File - Settings - Output - Advanced Dropdown - Recording tab.  You were just there a second ago.  Now, in the Recording Settings you see the line 'Audio Track'?  You can pick which (of 6!) tracks you want to feed to your local recording.  Choose "2" again.  Why?  Because as we set above, track 2 does not have any copyrighted sounds playing through it. So your local recording that you're going to edit and post to Youtube, TikTok or Insta won't have any copyright audio in it!

 

That's the long and short of it - hope it helps someone.

There's a much less verbose guide at OBS on their Twitch VOD Track Guide.