Okay, I've done some research and come up with this. Each film is about 10 to 20 minutes each. (Shorts films sorta like the Digimon ones that got merged into 1 big movie in Amercia)
The good news is I THINK I've found a number of places where you can watch them online. But, you have to pay yen? I HAVE NO YEN! ;O;
Here is one that looks promising.
http://translate.google.com/translate?hl=en&sl=ja&tl=en&u=http%3A%2F%2Fwww.videx.jp%2Fanime%2Fsp%2Fteduka_ab%2FScroll down and you'll come across the anime films, click on more information, scroll down again to where it mentions 'MORE' displaying...staff, cast and information. Here's what one of them says
# Provided By: Osamu Tezuka Anime World
# ご利用の皆様へ Available to everyone in
# 放映期間:2001/07/20 Broadcast period: 2001/07/20
# 収録時間:16分 Time: 16 minutes
# ファイルサイズ:344MB Size: 344MB
# ビットレート:3Mbps Bit Rate: 3Mbps
# 解像度:640x480 Resolution: 640x480
# メディア: WMV9 Media: WMV9
See, it wouldn't say that unless you can download it there, anyone got any ideas?
Also if you are interested in looking for the animes online, here are japanese names of them.
ASTRO BOY 鉄腕アトム特別編 アトム誕生の秘密
ASTRO BOY 鉄腕アトム特別編 イワンの惑星~ロボットと人間の友情~
ASTRO BOY 鉄腕アトム特別編 輝ける地球(ほし
~あなたは青く、美しい…~
ASTRO BOY 鉄腕アトム~月面基地・消えたロボットの謎~
ROBOT~夢のアストロボーイへ~
ASTRO BOY 鉄腕アトム 10万光年の来訪者・IGZA
Annnd another one of the other sites where it mentions to view them, run them through google translator if you can't understand them.
http://douga.nifty.com/cs/story/title/42800042/1.htm(scroll down)
http://www.dmm.com/digital/anime/-/present/Edit
Oh and I found the previews in higher quality!
http://tezukaosamu.net/jp/anime/130.htmlhttp://tezukaosamu.net/jp/anime/126.htmlhttp://tezukaosamu.net/jp/anime/127.htmlhttp://tezukaosamu.net/jp/anime/128.htmlhttp://tezukaosamu.net/jp/anime/26.htmlhttp://tezukaosamu.net/jp/anime/125.html