This thread is old, but so am I, and I'm kinda upset by what I've just read. I started with puppy using persistent CDs, several years after Barry's original sharing. OS tech grew, and so did puppy, but everything still fit on DVDs. UEFI threw a monkey wrench into the works, but the puppy mavens adapted. At this point, adaptation has grown to heroic levels. Ozsouth makes abbreviated distros that still fit on CDs. Peebee and others have kept 32-bit alive. All sorts of effort has gone into saving puppy from the pound, but remastering has become increasingly problematic due to Linux "improvements" that puppy people did not introduce.
I love the old ways, but time has marched on. This is the USB era, and puppy has developed in that direction, as it should. I've given friends plenty of optical disks, but I can count on one hand those who have actually used one. Frankly, making spinoff ISOs is an exercise in personal gratification that I enjoy, but it doesn't share very well in a Wind-Mac-Ubuntu dominated world.
Basically, I fill up old laptops with multiboot Linux examples that people genuinely like and use. There are many easy ways to do this when remastering scripts fail, or when new distros don't even include the option. It takes a little work, but it's not that hard. It's even easier to spread the wealth with USB sticks, if you don't have a resource of old machines to save. If anything, the "new" way is more effective than the "old" way. Yes, ISOs are still handy, but they're not necessary for downstream play.
In NO way are the folks doing the real work making this possible to blame in ANY way. They are doing their absolute best to share, and no one is hoarding anything. Please credit them appropriately... or bite your tongue.
I don't use TahrPup anymore, but I still like it. Bookworm, S15, KLA-KDE, KLV, Noble, FossaDog, BionicDog, and BionicPup-Revival on every machine, 'cause I'm always breaking something. First line of code - 1968.