Looks good/normal. Looks very safe. :iagree:
Just FYI: ODC has two speed selection boxes in the section where you create the data disc. In your case, it looks like it used the upper speed box, not the lower speed box.
All the burns you've done look like they've been at 4x, with hardware defect management enabled (ODC has this enabled by default, as does CD-DVD Speed). If you burn using something like ImgBurn, default settings have defect management off, so the burn might be a bit different. And of course you can still set the proper speed selection box to 6x in ODC for future tests. But ODC has a bug for creating test discs that causes buffer issues/throttles the data way below what the SATA bus is capable of at high speeds (I think it affects 10x and above, but may appear at other times, so be on the lookout).
Because of this, and because of the awkward speed selection, you have the option to write with ImgBurn, display the write graph data using ODC or some other tool (DVDInfoPro maybe, and another tool), and scan using ODC.
There are also two speed selection boxes in the disc scanning area of ODC. This looks like you managed to set it correctly using the lower speed box.