I hate to be the bearer of bad news, but I'm almost certain those cards are fake.
I went and took the liberty of scanning an unlimited Tundra and Revised Bayou out of my personal collection just now. These cards were scanned at 600 dpi.
Unlimited Tundra Front
This is the basic dot structure of every magic card from that era (and possibly since) Notice the 'pixels' are singular dots surrounded by a circle. I inverted to colors for clearer inspection. This is the pixel pattern you should be looking for when scanning in your magic cards.
Basic Magic Card Dot Structure
Although we cannot know for sure the dot pattern of your cards because the scan is not high resolution enough, I'm confident in concluding your cards are fake for three reasons.
1) Look at the Right black border framing your Bayou front. your scan shows hazy pixels where the pixels merge into the black border, forming a "fuzzy" border.
Now look at the scans on my Bayou.
Bayou Revised Front
The right black border of the frame is solidly demarcated. The border isn't fuzzy at all. It's well defined, clear and Bold.
2) Look at the back of both your Tundra and your Bayou. Now look at the backs of my two cards.
Bayou Revised Back
Unlimited Tundra Back
In particular, note the red dot on the upper left hand corner. Every real magic card has on the left side of that dot, an unmistakable whitening in the shape of a small dot right
before the black border. That little white dot or miscoloring always appears on the left side of the red dot, but ONLY by the Red Dot in the upper left frame of your card. Neither of your cards shows this. Go ahead and look for the white dot on the backs of all your other magic cards. Upper Left Side, right near the border.
3) Finally take a look again at the back scans of your cards. Look at the lower edge where the raised magic frame
meets the black border. The coloring is a little off. Normally, that wouldnt raise an issue, but its the way the
coloring is off thats troubling. On a real magic card, the back bottom border where the magic frame meets the Black border is really dark.
It's almost too dark! One has to strain a little bit to see the solid demarcation. There is a clear gradation of the brownish magic frame, before it hits the black border.
Now take a look at how your bottom frame meets the black border on your card backs. Not only do your
cards have a faint white line dividing the two, the point at which the frame separates from the
black border is a strong bold brownish color. There is no obvious gradation of the colors, it goes from
a strong black to a strong brown.
As I said, i hate to be the bearer of bad news, and I hope you can get a refund on your cards. Good luck to you.
[Edited 7 times, lastly by TomCat36 on March 17, 2011]